KR20060109613A - File server management method by home network - Google Patents

Abstract

A method for managing a file server through a home network is provided to facilitate connection to a file server even without having information such as an IP address of the file server. A remote file server periodically transmits an SSDP(Simple Service Discovery Protocol) advertisement message for informing about a CIFS(Common Internet File System) service to a control point of a UPn network(s10). When the control point discovers the remote file server, it registers the file server based on information such as an IP address of the remote file server(S11). The control point is automatically connected with an accessible directory provided from the remote file server(S12). When the control point transmits a CreateUser action for adding a user to the remote file server(S13), the remote file server transmits an action processing result as response information(S14). The control point transmits a CreateDir action for adding a directory to the remote file server(S15), the remote file server transmits an action processing result as response information to the control point(S16).

Description

FILE SERVER MANAGEMENT METHOD BY HOME NETWORK}

1 is a diagram showing the configuration of a typical UPnP network;

2 is a diagram illustrating a protocol stack structure in a UPnP network;

3 is a diagram illustrating a configuration of a UPnP network to which a file server management method according to the present invention is applied;

4 is a flowchart illustrating an operation of a file server management method through a home network according to the present invention;

5 to 13 illustrate the actions defined in the CIFS service applied to the present invention.

<Description of the symbols for the main parts of the drawings>

60: control point (CP), 70: remote file server,

80: computer device.

The present invention relates to a method for managing a file server through a home network, and more particularly, to a file server via a home network, which automatically discovers a remote file server through the Internet in a home network and enables easy server setting and access. It is about a management method.

In general, a home network includes a private network based on an Internet Protocol (IP), and includes various AV devices, kitchens, and computing devices such as personal computers (PCs) used in the home. Various devices such as home appliances and wireless devices can be connected and controlled in one network.

Such a home network is proposed to build middleware according to a common virtual computing environment for various devices existing in the home and to provide an application thereon. Such middleware enables communication between devices. HAVI (Home AV Interoperability), UPnP (Universal Plug and Play), Jini and the like are known.

Among them, UPnP network is a standard related to home network. It can automatically discover UPnP devices in the same IP network to get information about each device, and define the control environment for services provided by each device. It consists of a Control Point (CP) that controls the Device and devices that provide services, and the Control Point finds out the service contents of each device by discovering various devices through the provided interface. Description, Control these, receive and process various events.

FIG. 1 is a diagram illustrating a configuration of a typical UPnP network. In the UPnP network illustrated in FIG. 1, a control point 10 for controlling each device and a media server 20 for providing various media data are shown. A media renderer 30 for playing the media data, a file server 40 for providing various files at a remote location via the internet, and various files from a file server 40 at a remote location via the internet. Computer device 50 that receives the information.

The media server 20 allows the control point 10 to view information about media files held by the server through a content directory service (CDS), and the information about the media file. Contains information about the media file name, format, file size, presentation time, Uniform Resource Location (URL), and file type.

In the media renderer 30, the service of AVT (AVTransport) receives a media stream from the media server 20 through a standard networking protocol such as IP, HTTP, etc. by UPnP action for media playback from the control point 10. Play the media after receiving it.

The computer device 50 includes a control point 10 or is constructed separately from the control point 10, and through the control point 10 obtains the IP address of the file server 40 and the IP address. Access the file server 40 through the desired file to download and use.

As shown in FIG. 2, the protocol stack in the UPnP network uses IP, HTTP Internet protocol, XML (eXtensible Markup Language), and Simple Object Access Protocol (SOAP). Communication is defined as a number of steps.

When a device in a UPnP network joins the network, it receives its IP address using DHCP (Dynamic Host Configuration Protocol) or, if there is no DHCP server in the network, uses an automatic IP function to randomly select IP within a specific subnet. After the configuration, it checks whether the local network uses duplicates and then goes through the addressing step.

The finding step is a process of finding a device in a network at a control point (CP), which is performed by using a simple service discovery protocol (SSDP), in which case the control point wants to control an arbitrary device, (Alive) message will be delivered, and the existence message of the device can be known through the appearance message of the corresponding device.

In addition, the control point receives a response message from the device by transmitting a discovery message of the SSDP through the network, and if the device requests detailed information, the device sends a description of the information to the XML document. Going through.

When the control point wants to control an arbitrary device, a desired service is sent to the device using SOAP based on the device description. The SOAP corresponds to a protocol written in XML over HTTP for the purpose of calling a remote function. do.

In addition, when the control point wants to receive the event message of the device, it sends a subscription request for the event to the device, and if the subscription is successful, the control point is sent to the control point using GENA.

However, in such a UPnP network, in order to connect to a remote file server through the Internet from a computer device in the network, the user needs to know information such as the IP address of the file server so that normal connection is possible. There is an inconvenience of having to obtain and set an IP address.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to automatically discover and access a remote file server using a CIFS (Common Internet File System) service in a UPnP network, It is to provide a file server management method through a home network that enables server configuration through a UPnP service.

According to the present invention for achieving the above object, in a method for connecting to a remote device in a control application of a home network, in response to the transmission of a message informing the CIFS service from the remote device, the control application to the CIFS service; A method of managing a file server through a home network, comprising: discovering a device according to the system and registering the system; and performing user management and directory sharing setting management of a remote device according to action processing in the CIFS service. to provide.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 3 is a diagram illustrating a configuration of a UPnP network to which a file server management method according to the present invention is applied.

As shown in Fig. 3, in the UPnP network to which the method of the present invention is applied, a server setting for performing a user management action and a directory sharing management action on a file server by access by a CIFS service discovery from a remote file server is performed. A remote file that sends a message informing the CIFS service to the control point 60 that performs the operation, and the control point 60 of the UPnP network, and performs user setting management and directory sharing setting management according to a user management action and a directory sharing management action. A computer device 80 that downloads and uses a file from the file server 70 according to an automatic discovery and action processing operation of a remote file server 70 and the remote file server 70 by the control point 60. It is composed of

Here, the CIFS service is a protocol that enables various requests for a file or a service on a remote server through the Internet by the operation of a program. The client program can perform a predetermined request operation such as requesting access to a file existing on the server computer or delivering a message to a specific program, and the server computer receives the client's request and sends a response message accordingly. Can be transferred.

The CIFS is a public variant of the SMB protocol developed for accessing or printing files on a server in a local area network. The CIFS runs on a higher layer and uses the TCP / IP protocol of the Internet. The service type may be defined as follows to provide a service to the device.

urn: schemas-upnp-org: service: CommonInternetFileSystem: 1

4 is a flowchart illustrating an operation of a file server management method through a home network according to the present invention.

Hereinafter, the flowchart according to the embodiment of the present invention shown in FIG. 4 will be described in detail in parallel with the operation of the apparatus of FIG. 3.

First, the remote file server 70 providing the CIFS service periodically transmits an SSDP Advertisement message informing the CIFS service according to the UPnP protocol to the control point 60 of the UPnP network through the Internet (step S10). When the SSDP Search Request message is transmitted from the control point 60, a response message indicating the CIFS service is sent as a response to the search request message.

In this state, when the control point 60 finds the remote file server 70 through the SSDP message, the control point 60 based on information such as the IP address of the remote file server 70 through the Description message provided by the CIFS service. The device is then registered with the file server 70 (step S11).

In addition, the control point 60 automatically connects an accessible directory provided by the remote file server 70, and the accessible directory is an unspecified number of users connected to the file server 70. This corresponds to a directory to which all have been granted access (step S12).

In addition, when the login information is registered to the remote file server 70 at the control point 60, the accessible directory includes the login information of the control point 60 and the login information of the file server 70. It is also possible to limit to directories to which access rights are given at the same time, and to proceed using local functions depending on the implementation in the control point 60 without defining additional actions by the CIFS service. .

On the other hand, the management of the remote file server 70 is largely divided into user management and file server directory sharing setting management, CIFS for user management and directory sharing setting management between the control point 60 and the remote file server 70 Actions come and go, the action for user management and the action for directory sharing configuration management are defined as shown in the table shown in FIG.

First, when the control point 60 sends a CreateUser action to the remote file server 70 to add a user during user management (step S13), the remote file server 70 performs an action processing result for adding the user. Is sent as response information (step S14).

In addition, when the control point 60 sends a CreateDir action for adding a directory to the remote file server 70 in the directory sharing setting management (step S15), the remote file server 70 performs the action for adding the directory. The processing result is sent to the control point 60 as response information (step S16).

In the table that defines the CIFS action illustrated in FIG. 6, the actions of AddUser, CreatePassword, and DeleteUser are defined for user management, and the directory is added for directory sharing configuration management. The actions of CreateDir, Change Directory (EditDir), Delete Directory (DeleteDir), and Directory Information Lookup (ShowDirInfo) are defined.

In addition, state variables necessary for the actions for user management and directory management are shown in the table of FIG. 5. In the table of FIG. 5, "A_ARG_TYPE_RemoteUser" is a variable representing a login ID (ID) of a user who can access a file server 70 providing a CIFS service, and "A_ARG_TYPE_LocalUser" indicates a system login ID of the file server 70. "A_ARG_TYPE_Password" represents a password required for accessing the file server 70. The reason why the RemoteUser and LocalUser exist separately is that the login ID of the file server 70 itself and the login ID for accessing the user are defined. This is to allow access even if they are different.

In addition, the "A_ARG_TYPE_Dir" is a variable representing a directory in the file server 70, "A_ARG_TYPE_Permission" represents the access rights of the directory to set how to give the file read or write permission, "A_ARG_TYPE_AccessUserList" is a directory Is a variable that indicates the list of users who can access to and "A_ARG_TYPE_Result" corresponds to the result indicating whether each request action is normally executed.

On the other hand, in the CIFS action definition table, the CreateUser action, which is an action for adding a new user to the remote file server 70, proceeds to user processing according to the argument of the Createuser action shown in FIG. RemoteUser, LocalUser, and Password are sent to add a new user, and the result value indicating the normal execution result of the user addition is sent to the control point 60. The result value is not the result of performing the UPnP action itself. Is a value indicating whether the value is correct. If the adding user already exists, it is sent as an error value.

In the CIFS action definition table, the ChangePassword action as an action for changing a user password used for the remote file server 70 performs a password change process according to the argument of the ChangePassword action shown in FIG. As an action used for this purpose, the DeleteUser action proceeds with the user deletion process in accordance with the argument of the DeleteUser action shown in FIG. 9.

In addition, the directory management action in the CIFS action includes the CreateDir action, which is an action to add a new directory, the EditDir action, which is an action to change the directory's access rights, and the information of the currently shared directory. ShowDirInfo, the action used, and DeleteDir action, the action used to delete a directory.

In the CreateDir action, the directory management process is performed according to the parameters of the CreateDir action shown in FIG. 10. You can add a new one.

The EditDir action proceeds to the directory management process in accordance with the argument of the EditDir action shown in FIG. 11. The result is returned.

In the ShowDirInfo action, the directory management process is performed according to the ShowDirInfo action argument shown in FIG. 12. Will be sent.

The DeleteDir action proceeds with the directory management process in accordance with the DeleteDir action argument shown in FIG.

By the action processing of the CIFS service as described above, in the computer device 80 to the remote file server 70 which has been discovered by the control point 60, the system is registered, and the action of adding a user and adding a directory is performed. After connecting, you can download and use the desired file.

On the other hand, the present invention is not limited to the above-described typical preferred embodiments, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions are common in the art Those who have knowledge will easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described above, according to the present invention, a system can be automatically registered by discovering a remote file server in a UPnP network through a CIFS service, and a server connection and file can be managed by user management and directory sharing management processing in a server according to CIFS action processing. By enabling server management, it is possible to easily connect a file server without knowing information such as the IP address of the file server, and to facilitate the file server through the CIFS service without accessing a remote file server. It has the effect of being manageable.

Claims (9)

In a method for connecting to a remote device in a control application of a home network, A first step of discovering a device according to the CIFS service by the control application and registering the system according to transmission of a message informing the CIFS (Common Internet File System) service from the remote device; And a second step of performing user management and directory sharing setting management for a remote device according to an action processing in the CIFS service. The method of claim 1, The method of claim 1, wherein the remote device corresponds to a remote file server. The method of claim 1, The first step is any one of periodically sending an SSDP Advertisement message informing the CIFS service from the remote device, or sending a response message informing the CIFA service in response to the SSDP search request message in the control application. File server management method through a home network, characterized in that. The method of claim 1, In the second step, the action processing for the user management of the CIFS service is a user server (CreateUser), user password change (ChangePassword), user deletion (DeleteUser) action, characterized in that the file server management method through the home network . The method of claim 4, wherein In the second step, the action for user management, A variable (A_ARG_TYPE_RemoteUser) representing a login ID (ID) of a user who can access a remote device providing a CIFS service, a variable (A_ARG_TYPE_LocalUser) representing a system login ID of a remote device, and a password required to access the remote device. File server management method through a home network, characterized in that defined by the variable (A_ARG_TYPE_Password). The method of claim 1, In the second step, the action for managing the directory sharing settings of the CIFS service, the action of adding a directory (CreateDir), directory change (EditDir), directory deletion (DeleteDir), directory information lookup (ShowDirInfo) How to manage file server through home network. The method of claim 6, In the second step, the action for managing the directory sharing settings, A variable representing the directory in the remote device (A_ARG_TYPE_Dir), a variable for setting the access permissions of the directory (A_ARG_TYPE_Permission), a variable representing the list of users accessible to the directory (A_ARG_TYPE_AccessUserList), and whether each request action is normally performed. File server management method through a home network, characterized in that it is defined by a variable (A_ARG_TYPE_Result) according to the resulting value. The method of claim 1, The first step, in addition to the system registration of the remote device, the file server management method through the home network, characterized in that further comprising the step of connecting directly to the accessible directory provided by the device. The method of claim 8, In the first step, the accessible directory is a directory to which all general users have access rights, or any directory accessible when the login information of the remote control device and the login information of the remote device are the same. How to manage file server through home network.

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