KR101662801B1 - Device redirection system for providing virtualization service - Google Patents

Device redirection system for providing virtualization service Download PDF

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Publication number
KR101662801B1
KR101662801B1 KR1020150181561A KR20150181561A KR101662801B1 KR 101662801 B1 KR101662801 B1 KR 101662801B1 KR 1020150181561 A KR1020150181561 A KR 1020150181561A KR 20150181561 A KR20150181561 A KR 20150181561A KR 101662801 B1 KR101662801 B1 KR 101662801B1
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client terminal
sharing
virtualization server
module
connection
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KR1020150181561A
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Korean (ko)
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김창환
김정호
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(주)한위드정보기술
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    • H04L67/327—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L67/2814—

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  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The present invention relates to a device redirection system for providing a virtualization service and, more specifically, to a device redirection system for providing a virtualization service, which enables a device connected to a client terminal to be shared through a remote virtualization server when the virtualization service is provided, the device not being executed in the client terminal, but executed through a virtual machine run by the virtualization server that accesses the client terminal and brings a device resource, and thus enables resource sharing between the client terminal and the virtualization server without slow-downs or traffic increases. The device redirection system for providing a virtualization service comprises: a client terminal, a connection broker (CB) manager authenticating connection to the client terminal and permitting the client terminal to access a virtualization server, and the virtualization server providing the virtualization service to the client terminal. The client terminal includes a redirection agent checking sharing of a device from the virtualization server if the connection to the device is detected. The virtualization server includes a device sharing agent which brings a resource from the device connected to the client terminal and controls the same to be run in a virtual machine.

Description

TECHNICAL FIELD [0001] The present invention relates to a device redirection system for providing a virtualization service,

The present invention relates to a device redirection system for providing a virtualization service, and more particularly, to a device redirection system for providing a virtualization service, in which a device connected to a client terminal in a virtualization service is shared through a remote virtualization server, To a device redirection system for providing a virtualization service capable of sharing device resources between a client terminal and a virtualization server without slowing down or increasing traffic by configuring the virtualization server to execute resources through a virtual machine.

In recent years, virtualization services have become increasingly important for security of internal trade secrets and customer information in corporations and research institutes, and they have consumed a lot of time and manpower to manage distributed PCs, resulting in efficient use and management through a centralized computer environment. It is a field of technology in which research has been concentrated in recent years because of the growing need.

Meanwhile, as cloud system construction becomes more active, device redirection related technology concept for sharing end users' devices in addition to server resource sharing is increasing. In a cloud environment that provides virtualization technology, virtualization servers organically connect many devices, exchange data with each other, and provide services.

However, the conventional device redirection technology has a problem that the speed is lowered because the device is executed through the client terminal.

For example, the USB driver may not be able to be executed or the version may be low depending on the USB driver, which may cause a connection speed problem. In addition, in the existing system, even if the USB is the upper version, since it is executed through the client terminal and remotely shared, the program has to be executed at the lowest version speed, and as a result, the execution speed is lowered.

Conventionally, device resources are not shared between a client terminal and a virtualization server, but device resources executed through a client terminal are shared between client terminals, thereby increasing unnecessary consumption of network resources due to increased traffic.

Disclosure of Invention Technical Problem [8] The present invention has been devised to solve the problems of the prior art and the related art, and it is an object of the present invention to provide a virtualization system, in which a device connected to a client terminal in a virtualization service is shared through a remote virtualization server, The object of the present invention is to provide a device redirection system for providing a virtualization service capable of sharing device resources between a client terminal and a virtualization server without slowing down or increasing traffic by configuring the device resources to be executed through a virtual machine.

In addition, the present invention is not limited to sharing device resources executed through a client terminal with client terminals, but rather by sharing device resources between a client terminal and a virtualization server and configuring device resources to be executed in a virtualization server, And a device redirection system for providing a virtualization service capable of providing a virtualization service.

According to an aspect of the present invention, there is provided a device redirection system for providing a virtualization service, which comprises a client terminal, a client terminal, and a client terminal, And a virtualization server for providing a virtualization service to the connected client terminal, wherein the client terminal comprises a redirection agent for confirming device sharing to the virtualization server when device connection is detected, And the virtualization server includes a device sharing agent for controlling the virtual machine to execute the resource from the device connected to the client terminal.

Herein, the redirect agent detects whether a device is connected to the client terminal and confirms whether the device sharing agent is sharing the device when a connection is detected. If the sharing is selected by the device sharing agent A device information providing module for transmitting the device information to the device sharing agent, and a resource conversion / transmission module for converting the resource of the device and transmitting the converted resource to the device sharing agent.

Here, the device sharing agent selects a connection method based on the virtual machine designation module designating a virtual machine and the device information transmitted from the device information providing module, and when resource sharing of the device is required, And a connection control module for executing the device in the virtual machine using the requested device resource.

According to the device redirection system for providing a virtualization service having the technical problem and the solution, a device connected to a client terminal in a virtualization service is shared through a remote virtualization server but is not executed in the client terminal, It is possible to share device resources between the client terminal and the virtualization server without slowing down or increasing the traffic.

In addition, since the device resources to be executed through the client terminal are not shared between the client terminals but the device resources are shared between the client terminal and the virtualization server and the device resources are executed in the virtualization server, Virtualization services can be provided without any effect.

1 is a configuration block diagram of a device redirection system for providing a virtualization service according to an embodiment of the present invention.
2 is a detailed block diagram of a device redirection system for providing a virtualization service according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of a device redirection system for providing a virtualization service according to the present invention having the above-described problems, solutions, and effects will be described in detail with reference to the accompanying drawings.

The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator.

Virtualization service refers to a service that enables a virtual PC environment on the Internet to realize a business environment anytime and anywhere without restriction of time and space through various terminals.

FIG. 1 is a block diagram of a device redirection system for providing a virtualization service according to an embodiment of the present invention, and FIG. 2 is a detailed block diagram of FIG.

1 and 2, a device redirection system for providing a virtualization service according to the present invention basically authenticates a connection between a client terminal 100 having a redirection agent 10 and the client terminal 100 A CB (Connection Broker) manager 200 for allowing the client terminal 100 to access the virtualization server 300 and a virtualization server 200 for providing virtualization services to the connected client terminal 100 through the virtual machine 230. [ A server 300, and the like.

That is, a device redirection system for providing a virtualization service according to the present invention includes a client terminal 100, a client terminal 100, and a client terminal 100. The client redirection system 100 authenticates a connection of the client terminal 100 and permits the client terminal 100 to access the virtualization server 300 A connection broker manager 200 and a virtualization server 300 for providing a virtualization service to the connected client terminal 100. The client terminal 100 includes a redirection agent 10, And the virtualization server 300 is configured to include a device sharing agent 210.

The client terminal 100 may be any terminal capable of accessing the Internet, such as a desktop, a PC such as a notebook computer, a smart device such as a smart phone, and a tablet PC.

The CB manager 200 assigns a virtualization server to a client terminal according to a user's request.

More specifically, the CB manager 200 grasps the operation status of the virtualization server 300 and the authentication module 110 that allows connection between the client terminal 100 and the virtualization server 300 through client authentication, A server allocation module 130 for allocating a virtualization server 300 to a terminal and a monitoring module 150 for monitoring an operation state of the virtualization server 300.

The authentication module 110 confirms the access right of the user through the login authentication of the user who wants to connect to the virtualization server 300 so that only the authorized user can access the virtualization server 300, It allows the allocation of arbitrary virtual machines.

The authentication module 110 also sets an environment according to the user account information so that the user can access the virtual machine at a desired time when the use of the virtual machine allocated to the user is terminated.

The server allocation module 130 monitors the real-time operating state of the virtualization server 300 through the monitoring module 150 and allocates an optimal virtualization server to the client terminal.

 The monitoring module 150 monitors in real time the resource allocation status, usage information, and use of the created virtual machines of the virtualization servers, and allocates the optimal virtualization server to the client terminal by referring to the server allocation module do.

Also, the monitoring module 150 monitors resource information of the virtualization server, and the server allocation module 130 refers to the resource information to determine whether the virtualization server requests the device sharing of the device resource with the client terminal.

The client terminal 100 includes a redirection agent 10 for continuously checking whether the device 10 is connected when the virtual server 300 is accessed by the CB manager 200. The redirection agent 10 determines whether device sharing is to be performed with the virtualization server 300 when the connection of the device 1 is detected.

That is, the redirection agent 10 of the client terminal 100 confirms device sharing to the virtualization server 300 when the connection of the device 1 is detected. For example, the redirection agent 10 of the client terminal 100 may inquire whether the device is shared through a message transmission or a pop-up window.

Meanwhile, the virtualization server 300 controls the virtual machine through the hypervisor 250, designates the virtual machine 230 for executing the device 1, and transmits the virtual machine 230 to the client terminal 100 And a device sharing agent 210 for taking resources of the device from the connected device 10 and controlling the virtual machine 230 to execute the resource.

The device sharing agent 210 installed in the virtualization server 300 is connected to the client terminal 100. The redirection agent 10 converts the connected device resources into the transferable device resource, When the device 1 is connected to and shared with the device 1, it controls the device resource converted and transmitted through the redirection agent 210 to be executed in the virtual machine assigned to the virtualization server .

As a result, the redirection agent 10 and the device sharing agent 210 do not share the result of the device 1 performed by the client terminal 100 over the network, The virtualization server 300 is a client and the client terminal 100 is a server so that the virtualization server 300 requests the client terminal 100 for device resources And to control the use of the system.

More specifically, when the device 1 is connected to the client terminal 100, the redirection agent 10 converts the device resource into a form that can be transmitted and transmits the information of the connected device 1 to the virtualization server 1. [ And the device sharing agent 210 of the virtualization server 300 accesses the client terminal 100 in a selected protocol mode or a socket mode based on the information of the device 1 It is possible to perform control to be executed in the virtual machine while maintaining the speed according to the device version.

2, the redirection agent 10 includes a connection detection / sharing confirmation module 11, a device providing module 13, and a resource conversion / transmission module 15. Specifically, the redirection agent 10 senses whether the device 1 is connected to the client terminal 100, and when the connection is detected, the redirection agent 10 detects connection / A device information providing module (13) for transmitting the information of the device to the device sharing agent (210) when sharing is selected by the device sharing agent (21) And a resource conversion / transmission module 15 for transmitting the resource conversion request to the device sharing agent 210.

As soon as the client terminal 100 is connected to the virtualization server 300, the connection detection / sharing confirmation module 11 determines whether the device 1 is connected to the client terminal 100 or is connected to the client terminal 100 Lt; / RTI >

When the connection of the device 1 is detected according to the continuous detection confirmation operation by the connection detection / sharing confirmation module 11, the connection detection / sharing confirmation module 11 notifies the connected device sharing agent 21 Check whether the device is shared. The device sharing confirmation may be performed through a simple interfacing operation. For example, you can ask whether you want to confirm the sharing via a pop-up window or ask if you want to confirm the sharing through a message.

As a result of the confirmation, when the device sharing agent 210 generates a sharing selection, the device information providing module 13 parses the information of the device 1 and provides the device sharing agent 210 with the information. That is, the device information providing module 13 transmits the information of the device so that the device sharing agent 210 can determine whether the device requests resource sharing.

Then, the device sharing agent 210 requests sharing of the device resource based on the device information, selects a connection mode, and transmits the device resources according to the connection mode. When the device sharing agent 210 requests resource sharing of the device, the resource conversion / transmission module converts the resource of the device and transmits the resource in the access method.

Here, the device 1 is defined as a concept including all connected devices such as a camera, a storage device, and a communication device connected via USB, PCI, or the like.

The information of the device may include specification information (for example, speed information according to the USB version (1.0 / 1.1 / 2.0 / 3.0)) connected to the client terminal by the device, And selects one of a protocol type and a socket type according to the device information, thereby controlling the connection so that the device can run in the virtual machine without any speed drop.

The device sharing agent 210 selects a connection method based on the virtual machine designation module 211 designating the virtual machine 230 and the device information transmitted from the device information providing module 13, And a connection control module 213 for requesting resource sharing of the device and executing the device in the virtual machine 230 using the transmitted device resource when sharing is required.

The virtual machine designation module 211 registers the virtual machine 211 created in the virtualization server 300 allocated by the client terminal 100 according to the authentication of the CB manager 200 as a virtual machine 211).

Then, the device is executed in the virtual machine 211 under the control of the connection control module 213. Specifically, if there is a sharing confirmation request by the connection detection / sharing confirmation module 11, the connection control module 213 can select sharing by confirming whether or not to share. That is, there is a sharing confirmation request by a popup window or a confirmation message, and device sharing is selected when device sharing is required.

When the device information is transmitted from the device information providing module 13, the connection control module 213 selects a connection mode based on the device information, and the virtual server is connected to the client terminal.

Here, the connection control module 213 controls connection by selecting one of a protocol type and a socket type. In general, the protocol type is selected when the device version is low and low according to the device information, and the socket type can be selected when the device version is high and high depending on the device information.

The protocol method is a method of confirming the acknowledgment (ACK) information which confirms whether the data sent to the receiving side arrives sequentially from the beginning to the end and whether the transmitted data has arrived properly to the other party. It has high accuracy and stability, There is a problem that the speed is lowered or a delay occurs.

On the other hand, since there is no process of confirming whether the transmitted data has arrived normally, the socket method has an advantage that it can be transmitted at a high transmission rate, but data loss may occur. However, if the device version is high, it is necessary to select a socket type with a high transmission speed because it needs to cope with a high speed.

Therefore, since the virtual machine of the virtualization server can take and use the device resources transferred from the client terminal by appropriately selecting and controlling the protocol method and the socket method by the connection control module 213, Reliable data transmission can be possible without degrading the speed of the device.

Since the conventional device sharing mechanism is a method of controlling execution in a virtual machine to which a hypervisor of a virtualization server is connected when a client terminal is connected to a device, access control according to the state of the device is not possible. There is a problem that the speed is set to a lower version.

In addition, since the client terminal connects to the virtualization server and the device is executed in the virtual machine, there is a problem that the execution speed of the client terminal is low as well as execution error when the specification of the client terminal is low.

However, the device redirection method according to the present invention is not a method in which a client terminal accesses a virtualization server to share and execute resources, but conversely, a client terminal becomes a server and a device sharing agent of a virtualization server controls connection and transmission. It is possible to perform flexible connection control according to the state and thus to be executed in a state in which the speed of the device is not deteriorated and execution can be controlled according to the specification of the virtual machine irrespective of the specification of the client terminal.

Meanwhile, as described above, the connection control module 213 may select a connection mode based on the device information, connect to the client terminal, and request resource sharing of the device based on the device information.

Specifically, the monitoring module 150 of the CB manager 200 monitors the information of the device transmitted to the virtual connection control module 213. Then, the server allocation module 130 refers to the monitored information, and checks whether the information of the resource held by the virtualization server 300 has the same information as the device information. For example, it is checked whether a device driver version identical to the device driver version included in the transmitted device information is included as a resource of the virtualization server.

If it is determined that there is no information identical to the device information in the resource information held by the virtualization server 300, the server allocation module 130 transmits a device resource sharing necessity message to the connection control module 213 do. Then, the connection control module 213 accesses the client terminal with the selected connection method and requests the device resource sharing to the redirection agent.

Upon receiving the device resource sharing request, the client terminal converts (codes) the resource of the device through the resource conversion / transmission module and transmits the resource. Then, the connection control module controls the resources of the device to be decoded and to be executed in the virtual machine 230.

The device redirection process by the device redirection system for providing the virtualization service as described above will be briefly described as follows.

The redirection agent 10 can be downloaded and installed from an external application server.

Then, when the client terminal requests the virtualization server connection, the CB manager performs the authentication and allocates the virtualization server. In this state, the client terminal is connected to the virtualization server, and the device may or may not be connected.

Specifically, when the user requests access to the virtualization service through the login procedure through the client terminal, the authentication module of the CB manager compares the login information with the login information of the user information stored in the database, An allocation module allocates a virtualization server optimal for the client terminal, and allocates a virtual machine of the virtualization server.

When the device connection is detected by the connection detection / sharing confirmation module 11 of the redirection agent 10 or detected after the virtual machine is allocated as described above, a device sharing confirmation request is transmitted to the device sharing agent .

The device information providing module 13 transmits the connected device information to the connection control module 213 according to the sharing selection of the device sharing agent. Then, the connection control module selects an access method according to the device information, and controls the virtualization server to connect to the client terminal so that the resource of the device can be received.

One of the protocol type and the socket type is alternatively selected as the connection mode, and the selection can be continuously changed according to the network status and the transmission rate. A driver that enables transmission by the protocol type and socket type connection is installed in the virtual machine.

Accordingly, the connection control module selectively operates the protocol connection driver or the socket connection driver installed in the virtual machine, so that the resources of the device can be transferred in an appropriate communication method appropriate for the communication environment and the device can be executed in the virtual machine.

The access control module of the device sharing agent accesses the client terminal through a protocol or a socket method to bring the device resources through the network and controls the device to be executed in the allocated virtual machine.

Here, when the first device is connected, the connection control module accesses the client terminal through the protocol method to share the device resource. When the communication speed is low or the communication is not smooth by comparing with the device information, .

In addition, when the device information has a high version based only on the device information, it is possible to connect the device with the web socket method from the beginning without connection in the protocol mode, thereby preventing the speed reduction of the device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

1: Device 10: Redirection agent
11: Connection detection / sharing confirmation module 13: Device information provision module
15: resource conversion / transmission module 100: client terminal
110: Authentication module 130: Server allocation module
150: Monitoring module 200: CB manager
210: Device Sharing Agent 211: Virtual Machine Assignment Module
213: connection control module 230: virtual machine
250: hypervisor

Claims (3)

A CB (Connection Broker) manager for authenticating connection of the client terminal, allowing the client terminal to access the virtualization server, and a virtualization server for providing the virtualization service to the connected client terminal,
The CB manager includes an authentication module for allowing connection between the client terminal and the virtualization server through client authentication, a server allocation module for identifying the operation status of the virtualization server and assigning the virtualization server to the client terminal, Wherein the virtualization server includes a monitoring module for monitoring the device connection, and the client terminal includes a redirection agent for confirming device sharing to the virtualization server when device connection is detected, and the virtualization server obtains resources from a device connected to the client terminal, A device sharing agent for controlling the device to execute,
When the client terminal is connected to the virtualization server, the redirection agent detects whether the device is connected to the client terminal or is connected to the virtual terminal. If the connection is detected, the redirection agent notifies the device sharing agent via the pop- Sharing confirmation module, and when the sharing selection is made by the device sharing agent, transmits the information of the device to the device sharing agent so that the device sharing agent can determine whether or not to request resource sharing of the device And a resource conversion / transmission module for converting a resource of the device and transmitting the resource to the device sharing agent when the device sharing module requests resource sharing of the device Respectively,
Wherein the device sharing agent selects a connection method based on information of a virtual machine designation module designating a virtual machine and information of a device transmitted from the device information providing module, and when sharing of resources of the device is required, And a connection control module for causing the device to execute in the virtual machine using the transferred device resources,
Wherein the monitoring module of the CB manager monitors information of the device transmitted to the connection control module, and the server allocation module refers to the information of the monitored device, The access control module requests the access control module to request the device resource sharing request. In this case, the connection control module requests the redirection agent to share the resource of the device. A device redirection system for provisioning.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111782319A (en) * 2020-06-16 2020-10-16 贵州省广播电视信息网络股份有限公司 System and method for realizing shared access by mounting USBKey on cloud desktop

Citations (2)

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Publication number Priority date Publication date Assignee Title
KR20110034350A (en) * 2009-09-28 2011-04-05 주식회사 잉카인터넷 Medium control method in virtual machine environment
KR20150045669A (en) * 2013-10-21 2015-04-29 한국전자통신연구원 Appratus for a virtual desktop service and method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110034350A (en) * 2009-09-28 2011-04-05 주식회사 잉카인터넷 Medium control method in virtual machine environment
KR20150045669A (en) * 2013-10-21 2015-04-29 한국전자통신연구원 Appratus for a virtual desktop service and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111782319A (en) * 2020-06-16 2020-10-16 贵州省广播电视信息网络股份有限公司 System and method for realizing shared access by mounting USBKey on cloud desktop
CN111782319B (en) * 2020-06-16 2024-03-22 贵州省广播电视信息网络股份有限公司 System and method for realizing shared access by mounting USBKey on cloud desktop

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