KR100243676B1 - Method for inserting/deleting a various service protocol and network interface of internet protocol - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to various service protocols and network interface addition and deletion methods of the Internet protocol.

2. The technical problem to be solved by the invention

The present invention is to provide a method of adding and deleting various service protocols and network interfaces of the Internet protocol that is easy to add and delete network interfaces and service protocols without direct modification of the Internet protocol program.

3. Summary of Solution to Invention

The present invention provides an Internet protocol manager comprising: a first step of receiving a command from a user and determining whether the command type is a network interface or a service protocol; A second step of adding or deleting a network interface by calling a network interface management module if the command type is a network interface; And a third step of adding or deleting a service protocol by calling a service protocol management module if the command type is a service protocol.

4. Important uses of the invention

The present invention is used in the communication device of the Internet protocol function.

Description

How to add and delete various service protocols and network interfaces of Internet protocol

The present invention relates to a method of adding and deleting various service protocols and network interfaces of the Internet protocol which is easy to add and delete network interfaces and service protocols without direct modification of the Internet protocol program.

A communication device having an Internet protocol function should be able to accommodate various network interfaces and support various service protocols depending on the application. That is, the network interface type and the service protocol type may vary depending on the communication device. In the Internet protocol, different programs are called depending on the type of network interface and service protocol. At this time, when a new network interface or service protocol is added, or when a conventional network interface or service protocol is deleted, a corresponding calling program is added or deleted, so that an Internet protocol program must be directly modified.

When a new network interface or service protocol is added or a conventional network interface or service protocol is deleted in a communication device having an Internet protocol function, the corresponding calling program should be added or deleted. In addition, when using the Internet protocol function in various communication devices, each communication device provides a different network interface and service protocol, so in this regard, the Internet protocol program should be modified and mounted for each communication device. Since a conventional internet protocol program is dependent on a network interface or a service protocol supported by a communication device, when a new network interface or service protocol is to be mounted, there is a problem of directly modifying the internet protocol program.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, so that the addition or deletion of the network interface or service protocol in the communication device having the Internet protocol function can be made without direct modification of the Internet program. The purpose is to provide various service protocols and network interface addition and deletion methods of the Internet protocol.

1 is a diagram illustrating an embodiment of a hierarchical connection relationship of an Internet protocol to which the present invention is applied.

2 is a structural diagram of an embodiment of an Internet protocol manager to which the present invention is applied;

3 is an explanatory diagram of a method of adding a service protocol and a network interface.

4 is an explanatory diagram for explaining a service protocol and a network interface deleting method.

5 is a flow diagram of one embodiment of a service protocol and network interface addition and deletion processing method in accordance with the present invention;

6 is a flowchart illustrating an embodiment of a control procedure of an Internet protocol manager.

* Explanation of symbols for main parts of the drawings

101: upper layer 102: transmission control protocol

103: user data protocol 104: Internet control message protocol

105: Internet Protocol 106: Lower Layer

107: network interface 201: Internet Protocol Manager interface

202: service protocol management module 203: network interface management module

The method of the present invention for achieving the above object, in the various service protocols and network interface addition and deletion methods of the Internet protocol, the Internet protocol manager receives a command from the user whether the command type is the network interface or the service protocol Determining a first step; A second step of adding or deleting the network interface by invoking a network interface management module if the command type is the network interface; And a third step of adding or deleting the service protocol by calling a service protocol management module if the command type is the service protocol.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an embodiment of a hierarchical connection relationship of an internet protocol to which the present invention is applied.

As shown in the figure, a transmission control protocol (TCP) 102 of a higher layer 101, a user data protocol (UDP) 103, an internet control message protocol (Internet Control Massage Protocol): The hierarchical structure of the Internet protocol 105, which may have various service protocols such as ICMP) 104, may have a local interface 108 of the lower layer 106 and various network interfaces 107.

In order to transfer data from the upper layer 101 or the lower layer 106 to the Internet protocol 105, an interface function provided by the Internet protocol may be called. When data is to be transmitted from the Internet protocol 105 layer to the upper layer 101, the corresponding function is called for each data service protocol, and when the data is transmitted to the lower layer 106, the corresponding function is called for each network interface for processing. That is, in the Internet protocol, different programs are called according to the network interface type and the service protocol type.

A new network interface or service protocol must be added or deleted in a communication device with Internet protocol functionality. However, in a communication device having a conventional Internet protocol function, a problem arises in that an Internet protocol program must be directly modified when a new network interface or service protocol is added or deleted. The present invention has an Internet Protocol Manager to solve this problem.

2 is a structural diagram of an embodiment of an Internet protocol manager to which the present invention is applied.

As shown in the figure, the internet protocol manager includes an internet protocol manager interface 201, a service protocol management module 202, and a network interface management module 203, which provide an interface to a user.

The internet protocol manager interface 201 provides an operator command so that a user can instruct addition or deletion of a network interface and a service protocol. The service protocol management module 202 and the network interface management module 203 receive instructions from the Internet protocol manager interface 201 and add or delete service protocol functions and network interface functions from the corresponding table.

In the present invention, the Internet protocol manager generates and manages a table relating to service protocols and network interfaces so that service protocols or network interfaces can be added and deleted without direct modification of the Internet protocol program. In addition, the Internet protocol is programmed to deliver data to upper layer or lower layer only with the above-described table.

When a new service protocol is added or deleted, the service protocol management module 202 of the Internet protocol manager adds or deletes the corresponding service protocol function to the service protocol table. In addition, when a new network interface is added or deleted, the network interface management module 203 of the Internet protocol manager adds or deletes a corresponding network interface function to the network interface table.

Table 1 below shows a service protocol table.

Type of service function One icmp_in () 17 udp_in () ... ...

The service protocol table of Table 1 as described above has two components, one representing a type of service protocol provided by the Internet protocol, and the other is a function for the corresponding service protocol. In the Internet protocol, the service protocol value of the data to be transmitted is compared with the service type value in the service protocol table, and if there is a matching entry, the function of the entry is called to transfer the data to the upper layer.

Table 2 below shows a network interface table.

function local_out () net1_out () net2_out () ... netn_out ()

The network interface table of Table 2 as described above is composed of only network interface functions. The first entry in the network interface table is the local interface function. From the second entry, the corresponding function is stored in order according to each network interface number. Thus, the number of entries in the network interface table matches the number of network interfaces.

In the Internet protocol, the output network interface number of the data to be delivered is an index, and the corresponding function of the network interface table is called to transfer the data to the lower layer.

3 is an explanatory diagram for a method of adding a service protocol and a network interface.

As shown in the figure, if the Internet protocol manager 301 modifies the service protocol table 302 or the network interface table 303 when adding a new network interface or adding a new service protocol to a communication device, It shows the addition of a service protocol or network interface without direct modification.

When the transmission control protocol is added to the communication device, the Internet protocol manager 301 adds the service type and service protocol function received from the user to the service protocol table 302. When the network interface 3 is newly added to the communication device, the Internet protocol manager 301 adds the network interface function input from the user to the network interface table 303 according to the network interface number.

Since the Internet protocol refers to the service protocol table and the network interface table, it is possible to process data related to the transmission control protocol and the network interface 3 without program modification of the Internet protocol.

4 is an explanatory diagram of a service protocol and a network interface deleting method.

As shown in the figure, if the Internet protocol manager 401 modifies each service protocol table 402 or network interface table 403 when deleting a network interface or a service protocol in a communication device, direct modification of the Internet protocol program. Indicates that you can delete a service protocol or network interface without

When the user data protocol is deleted from the communication device, the Internet protocol manager 401 deletes the service type and service protocol function received from the user in the service protocol table 402. When the network interface 2 is deleted from the communication device, the internet protocol manager 401 deletes the network interface function received from the user from the network interface table 403 and sets the corresponding value to a null value.

Since the Internet protocol refers to the service protocol table and the network interface table, the network interface and the service protocol can be deleted without program modification of the Internet protocol.

5 is a flowchart of an embodiment of a service protocol and network interface addition and deletion processing method according to the present invention.

As shown in the figure, the user waits for an interface command (501), and when a command type is received (502), determines the command type (502) and calls the network interface management module (503) for the network interface.

Subsequently, if the command type is determined (504) and the network interface is deleted, the network interface function is deleted from the network interface table in the network interface table (505), and information related to the deleted network interface is deleted (506). The addition adds the corresponding network interface function in the network interface table (507) and adds information related to the added network interface (508).

On the other hand, the command type is determined (502) if the service protocol calls the service protocol management module (509).

Subsequently, the command type is determined (510). If the service protocol is deleted, the corresponding service protocol function is deleted from the service protocol table (511). If the service protocol is added, the corresponding service protocol function is added from the service protocol table (512).

6 is a flowchart illustrating a control procedure of an Internet protocol manager, and illustrates a flow control of the Internet protocol manager when deleting or adding a network interface or a service protocol in a communication device.

As shown in the figure, even if a function according to a network interface type and a function according to a supported service protocol type cannot be identified, an internet protocol flow control method of calling a corresponding function using a network interface table and a service protocol table.

The Internet protocol queue (IPQ) queues Internet Protocol datagrams (601) and performs version checks, address checks, and checksum checks when received from a non-local interface (602).

It performs routing (603) and determines whether the transmission network state is down (604) and discards the datagram if it is down (605), and if it is not down, using the network interface table, the corresponding function according to the type of the transmission network interface Call 606.

Subsequently, the function type is determined (607), and if it is a network interface function, a process corresponding to the network interface function is performed (608), a local interface function (local_out) is called (609), and a datagram type using a service protocol table. According to the corresponding (transmission control protocol, user data protocol and Internet control message protocol) function (610).

The internet protocol task performs routing by using the destination address of the received data packet and transmits it to the next destination.

When sending a data packet, call the function in the network interface table with the network interface number of the next destination as an index. If the next destination is a local interface (that is, the destination of the received data packet is itself), the local interface function (local_out) of the network interface table is called. In the local interface, the service of the corresponding protocol should be called according to the type of data packet. Therefore, the local interface function calls the corresponding function in the service protocol using the service type of the received data packet as an index to perform the appropriate protocol.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

Therefore, as described above, the present invention has a service protocol table and a network interface protocol table, and when the Internet protocol function is used, the Internet protocol manager communicates with the Internet protocol function by providing a different network interface and service protocol for each communication device. If a device adds or deletes a service protocol or a network interface, the device can be used as it is without modifying the Internet protocol program, and it can solve the difficulty of directly modifying the Internet protocol program for each communication device.

Claims (4)

In the various service protocols and network interface addition and deletion methods of the Internet protocol, A first step of the Internet protocol manager receiving a command from a user and determining whether the command type is the network interface or the service protocol; A second step of adding or deleting the network interface by invoking a network interface management module if the command type is the network interface; And A third step of adding or deleting the service protocol by calling a service protocol management module if the command type is the service protocol; Service protocol and network interface addition and deletion method comprising a. The method of claim 1, The second step, Adding a corresponding network interface function in a network interface table and adding information related to the added network interface when adding the network interface; And A fifth step of deleting a corresponding network interface function from a network interface table and deleting information related to the deleted network interface when deleting the network interface; Service protocol and network interface addition and deletion method comprising a. The method of claim 1, The third step, Adding a corresponding service protocol function in a service protocol table and adding information related to the added service protocol when adding the service protocol; And A fifth step of deleting a corresponding service protocol function from a service protocol table and deleting information related to the deleted service protocol when deleting the service protocol; Service protocol and network interface addition and deletion method comprising a. The method of claim 3, wherein And the service protocol is a transmission control protocol, a user data protocol, or an internet control protocol.

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