KR101820117B1 - Communication monitoring device, method of monitoring communication and storage media of middle-box operating system implementing the same - Google Patents
Communication monitoring device, method of monitoring communication and storage media of middle-box operating system implementing the same Download PDFInfo
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- KR101820117B1 KR101820117B1 KR1020160026333A KR20160026333A KR101820117B1 KR 101820117 B1 KR101820117 B1 KR 101820117B1 KR 1020160026333 A KR1020160026333 A KR 1020160026333A KR 20160026333 A KR20160026333 A KR 20160026333A KR 101820117 B1 KR101820117 B1 KR 101820117B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/12—Network monitoring probes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
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Abstract
The communication monitoring apparatus includes a packet receiving unit and an application driving unit. The packet receiving unit receives the packet generated according to the communication protocol. The application driver monitors the packet based on the application program running on the operating system. In addition, the application driver determines on the operating system whether the cumulative data formed by accumulation of packets or packets is a monitored packet or monitored data corresponding to a predetermined monitoring condition, and at least one of the monitored packet or the monitored data is applied To the application.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication monitoring apparatus, a communication monitoring method, and an operating system program implementing the same, and more particularly, to a middle-box, a communication monitoring method in a middle box and a middle- .
Recently, services based on communication networks such as the cloud are increasing, and thus the amount of data generated in the home as well as the general business is also increasing. As a result, the amount of data to be transmitted over the communication network is continuously increasing.
Meanwhile, a communication company or the like operating a middle-box located in the middle of a network may transmit and receive data transmitted and received through the network for various purposes, such as measuring the amount of data actually transmitted and received, To be monitored.
However, conventional hardware equipment for monitoring a communication network is often relatively expensive. Furthermore, it is not easy to define and add new monitoring methods beyond those provided by hardware device manufacturers. As a result, additional expensive equipment must be purchased to introduce efficient new monitoring methods depending on the increasing amount of communication data. In other words, existing hardware devices for communication monitoring have a problem in that it is not efficient due to lack of flexibility in coping with new monitoring methods.
The prior art document described below describes a technique for removing duplicate content in a middle box, but still lacks the flexibility of the new monitoring method.
It is an object of the present invention to provide a communication monitoring apparatus which can easily add an efficient monitoring method.
It is another object of the present invention to provide a communication monitoring method capable of easily adding an efficient monitoring method.
It is another object of the present invention to provide a storage medium on which a program capable of easily adding an efficient monitoring method is recorded.
It should be understood, however, that the present invention is not limited to the above-described embodiments, and may be variously modified without departing from the spirit and scope of the present invention.
In order to accomplish one object of the present invention, a communication monitoring apparatus according to embodiments of the present invention includes a packet receiving unit for receiving a packet generated according to a communication protocol, and an application for monitoring based on an application program running on the operating system Wherein the application driver determines on the operating system whether the packet or the cumulative data formed by accumulating the packet is a monitored packet or monitored data corresponding to a predetermined monitoring condition, And transmits at least one of the monitoring target data to the application.
According to an embodiment, the application application may instruct a processing task based on at least one of the monitored packet or the monitoring target data, and the application driver may perform the processing task.
According to one embodiment, the communication protocol may be a Transmission Control Protocol (TCP).
According to one embodiment, the monitoring condition may be generated in the application.
According to one embodiment, the monitoring condition for the packet includes whether the packet is a new packet that has not been previously received, whether the packet is an initiation packet that declares a new communication connection to be initiated, whether the packet is a retransmission packet, whether the packet is a first state transition packet generated when a caller state is switched in the communication connection, whether the packet is a first state transition packet generated when a recipient of the communication connection is switched 2-state transition packet, whether the packet is a termination packet that declares that the communication connection is terminated, an out-of-flow packet generated in a manner in which the packet is not defined in the communication protocol Whether or not the packet received after a predetermined time has elapsed from the reception time of the preceding packet indicates the number of the preceding packets It may include at least one or more of whether or not the trailing packet expected to be received after one.
According to one embodiment, the monitoring condition for the cumulative data includes whether the cumulative data has reached the target data that is the transmission target of the communication connection, or whether the cumulative data has reached the target data And whether or not the user has made a request.
According to another aspect of the present invention, there is provided a communication monitoring method comprising: receiving a packet generated according to a communication protocol; and monitoring the packet based on an application program running on the operating system Wherein the monitoring step comprises the steps of determining on the operating system whether the packet or the cumulative data formed by accumulating the packet is a monitored packet or monitored data corresponding to a predetermined monitoring condition, And transmitting at least one of the monitoring target data to the application.
According to an embodiment, the monitoring step may further include performing a processing task indicated by the application program based on at least one of the monitored packet or the monitored data.
According to one embodiment, the communication protocol may be a transmission control protocol.
According to one embodiment, the monitoring condition may be generated in the application.
According to one embodiment, the monitoring condition for the packet includes whether the packet is a new packet not previously received, whether the packet is a start packet declaring that a new communication connection is to be started, whether the packet is a retransmission packet Whether the packet is a first state transition packet generated when the sender state is switched in the communication connection, whether the packet is a second state transition packet in which the receiver state is switched by receiving a recipient of the communication connection, Whether or not the packet is an out-of-range packet generated in a manner not defined in the communication protocol, or whether the packet is an out-of-range packet generated in a manner not defined in the communication protocol, A trailing packet that is expected to be received after the packet has received the preceding packet. What it may include at least one of not.
According to one embodiment, the monitoring condition for the cumulative data includes whether the cumulative data has reached the target data that is the transmission target of the communication connection, or whether the cumulative data has reached the target data And whether or not the user has made a request.
According to another aspect of the present invention, there is provided a storage medium on which an OS program according to embodiments of the present invention is recorded. The storage medium stores a packet generated according to a communication protocol or accumulated data formed by accumulating the packet, Determining whether the monitoring target packet or the monitoring target data is a corresponding monitoring target packet or monitoring target data, transmitting at least one of the monitoring target packet or the monitoring target data to an application, And performing a processing task indicated by the application program on the terminal.
According to one embodiment, the communication protocol may be a transmission control protocol.
According to one embodiment, the monitoring condition may be generated in the application.
According to one embodiment, the monitoring condition for the packet includes whether the packet is a new packet not previously received, whether the packet is a start packet declaring that a new communication connection is to be started, whether the packet is a retransmission packet Whether the packet is a first state transition packet generated when the sender state is switched in the communication connection, whether the packet is a second state transition packet in which the receiver state is switched by receiving a recipient of the communication connection, Whether or not the packet is an out-of-range packet generated in a manner not defined in the communication protocol, or whether the packet is an out-of-range packet generated in a manner not defined in the communication protocol, A trailing packet that is expected to be received after the packet has received the preceding packet. What it may include at least one of not.
According to one embodiment, the monitoring condition for the cumulative data includes whether the cumulative data has reached the target data that is the transmission target of the communication connection, or whether the cumulative data has reached the target data And whether or not the user has made a request.
The communication monitoring apparatus and the communication monitoring method according to the embodiments of the present invention can easily add a new monitoring method by monitoring packets and cumulative data on an operating system and delivering them to an application running on an operating system. That is, the user can easily add an efficient monitoring method by developing an application based on the development tool provided by the operating system.
In addition, the storage medium according to embodiments of the present invention may provide an operating system program used in the communication monitoring apparatus and the communication monitoring method.
However, the effects of the present invention are not limited to the above effects, and may be variously extended without departing from the spirit and scope of the present invention.
1 is a block diagram illustrating a communication monitoring apparatus according to embodiments of the present invention.
FIG. 2 is a block diagram showing an example in which an application driver included in the communication monitoring apparatus of FIG. 1 operates.
3 is a flowchart illustrating a communication monitoring method according to embodiments of the present invention.
4 is a flowchart illustrating a communication monitoring method executed by an operating system program recorded on a storage medium according to embodiments of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.
1 is a block diagram illustrating a communication monitoring apparatus according to embodiments of the present invention.
Referring to FIG. 1, the
The
The sender can generate at least one packet (PKT) by dividing the data to be sent. At this time, the packet PKT may be generated according to the communication protocol. That is, the sender can generate the packet (PKT) according to the rule set in the communication protocol. For example, the communication protocol may be a Transmission Control Protocol (TCP), and the sender may generate a packet (PKT) according to the rules defined in the transmission control protocol.
The generated packet (PKT) can be transmitted over the communication network and can be reassembled by the recipient receiving the packet (PKT). The recipient can also reassemble the packet (PKT) according to the same communication protocol as the sender and recover the data. For example, the receiver can recover the data by reassembling the packet (PKT) according to the transmission control protocol.
The
The
The
The
The monitoring condition may be provided by the operating system, or it may be generated by an application. In other words, application applications can be designed to use only the monitoring conditions provided by the operating system, but can also be made to use the monitoring conditions themselves.
The operating system can provide essential or often used monitoring conditions for application applications. For example, the monitoring conditions provided by the operating system include whether the packet (PKT) is a new packet, whether the packet (PKT) is an initiation packet, whether the packet (PKT) is a retransmission packet, Whether or not the packet PKT is a first conversion packet, whether the packet PKT is a second conversion packet, whether the packet PKT is a termination packet, whether the packet PKT is an out-of-flow packet Whether or not the accumulated data has reached the target data, whether or not the accumulated data has not reached the target data, and whether or not the received packet has been received after the predetermined time has elapsed from the reception time of the preceding packet And whether the packet is a trailing packet expected to be transmitted.
The
The
The
The
The
The
The
A day communication connection may aim to send the target data to the recipient without loss. The target data may be divided into a plurality of configuration packets, and the configuration packets may be transmitted sequentially. The
However, when the cumulative data does not reach the target data, the size of the cumulative data may continuously increase and eventually exceed the limit of the storage. Accordingly, the
The
The monitoring condition can be generated in an application running on the operating system. That is, some of the monitoring conditions may not be provided fundamentally in the operating system. In addition, the monitoring condition generated by the application may be a combination of two or more monitoring conditions fundamentally provided in the operating system. The generated monitoring conditions can also be used on the operating system as well as the basic monitoring conditions. For example, the
The
The
The
According to the embodiment, different processing tasks can be created in a plurality of application applications, and a processing task can be created only in some application applications. For example, the first application may generate a first processing job and deliver it to the operating system, but the second application may not create a processing job.
The
FIG. 2 is a block diagram showing an example in which an application driver included in the communication monitoring apparatus of FIG. 1 operates.
Referring to FIG. 2, the
The
The
The monitoring conditions CON1 and CON2 may be those provided by the
The
The monitoring conditions CON1, CON2 may be generated in the application applications 244-1, 244-2 running on the
The
The
The
According to the embodiment, different processing jobs HD1 may be created in a plurality of application applications 244-1 and 244-2 and a processing job HD1 may be created only in some application applications 244-1 have. For example, the first application application 244-1 may generate and deliver the first processing task HD1 to the
3 is a flowchart illustrating a communication monitoring method according to embodiments of the present invention.
3, in a communication monitoring method according to embodiments of the present invention, a packet generated according to a communication protocol may be received (S120), and a packet may be monitored (S140) based on an application application .
A packet generated according to the communication protocol may be received (S120). Here, the packet can be received by a third party other than the sender or receiver. For example, an intermediary located between a sender and a receiver on a communications network may receive the packet. Thus, the received packet can be delivered to the recipient again. According to an embodiment, the communication protocol may be a transmission control protocol.
The packet may be monitored (S140) based on an application running on the operating system. At least one application program may be run on the operating system. For example, a user may run a first application on an operating system according to a purpose, and may run a second application on an operating system according to another purpose.
When the packet is monitored (S140), it is determined whether the packet or the accumulated data is the monitored packet or the monitored data (S142) on the operating system, and at least one of the monitored packet or the monitoring target data is delivered to the application ). Further, according to the embodiment, the processing job indicated by the application application can be performed (S146).
The accumulated data formed by accumulation of packets or packets may be judged on the operating system (S142) whether the monitored packet corresponds to the predetermined monitoring condition or the monitored data. It can be determined whether the packet is a monitoring target packet corresponding to a predetermined monitoring condition. Also, it can be determined that the accumulated data formed by accumulating the packets is the monitored data corresponding to the predetermined monitoring condition. Here, whether or not the monitoring condition is satisfied can be judged on the operating system.
The operating system can provide essential or often used monitoring conditions for application applications. For example, the monitoring condition provided by the operating system may include whether the packet is a new packet, whether the packet is a start packet, whether the packet is a retransmission packet, whether the packet is a first switch packet, whether the packet is a second switch packet, Whether or not the packet is an out-of-range packet, whether or not the packet is out of the range, whether or not the accumulated data has reached the target data, whether or not the accumulated data has not reached the target data, And whether the received packet is a trailing packet that is expected to be received after receiving the preceding packet.
It can be determined whether or not the packet is a new packet that has not been received previously. It can be determined whether or not the received packet is a previously received packet based on the cumulative data up to the received time point.
It may be determined whether the packet is a start packet that declares that a new communication connection is to be started. The initiation packet may be a packet that is generated to declare that a new communication connection is initiated after the mutual verification procedure between the sender and the recipient is terminated.
It can be determined whether or not the packet is a retransmission packet. A retransmission packet may be generated when a sender sends a packet and then receives a retransmission request from the receiver. Alternatively, the retransmission packet may be generated when a certain time has elapsed after the sender has sent a packet, but has not received acknowledgment of a packet from the receiver.
It can be determined whether or not the packet is a state transition packet. The state transition packet may be a first state transition packet generated when the sender state is switched in the communication connection and may be the second state transition packet in which the receiver state is switched by receiving the communication connection recipient.
It can be determined whether the packet is a termination packet that declares that the communication connection is terminated. The termination packet may be a packet generated to declare that the communication connection that was created after the data exchange between the sender and the recipient is terminated is terminated.
It can be determined whether or not the packet is out of the range. The out-of-range packet may be a packet generated in a manner not defined in the communication protocol.
It can be determined whether or not the cumulative data has reached the target data. Further, it can be judged whether or not the accumulated data has not reached the target data. Here, the accumulated data may be formed by accumulating packets, and the target data may be the transmission target of the communication connection.
It can be determined whether or not a trailing packet that is expected to be received after the preceding packet has not been received even though a predetermined time has elapsed since the time when the preceding packet was received.
The monitoring condition can be generated in an application running on the operating system. That is, some of the monitoring conditions may not be provided fundamentally in the operating system. In addition, the monitoring condition generated by the application may be a combination of two or more monitoring conditions fundamentally provided in the operating system. The generated monitoring conditions can also be used on the operating system as well as the basic monitoring conditions.
At least one of the monitoring target packet or the monitoring target data may be transmitted to the application application (S144). That is, when a packet or cumulative data corresponds to a monitoring condition, at least one of a monitored packet or monitored data may be delivered to an application. Here, the scope of transmitting the monitoring target packet and the monitoring target data can be determined by the application application.
The processing job indicated by the application application can be performed (S146). Here, the processing operation can be generated based on at least one of the monitored packet or the monitored data. According to the embodiment, different processing tasks can be created in a plurality of application applications, and a processing task can be created only in some application applications.
The communication monitoring method according to embodiments of the present invention can easily add a new monitoring method by monitoring packets and cumulative data on an operating system and transmitting the monitoring data to an application running on an operating system. That is, the user can easily add an efficient monitoring method by developing an application based on the development tool provided by the operating system.
4 is a flowchart illustrating a communication monitoring method executed by an operating system program recorded on a storage medium according to embodiments of the present invention.
Referring to FIG. 4, the operating system program recorded on the storage medium according to the embodiments of the present invention may determine whether the packet or the accumulated data is a monitored packet or monitored data corresponding to a predetermined monitoring condition (S220) , The monitoring target packet or the monitoring target data to the application application (S240), and performs the processing job indicated by the application application based on at least one of the monitoring target packet and the monitoring target data (S260 ).
The cumulative data formed by accumulating the packets or packets generated according to the communication protocol by the operating system program recorded on the storage medium can be judged on the operating system (S220) whether the monitoring target packet or the monitoring target data corresponding to the predetermined monitoring condition have. According to an embodiment, the communication protocol may be a transmission control protocol.
The operating system can provide essential or often used monitoring conditions for application applications. For example, the monitoring condition provided by the operating system may include whether the packet is a new packet, whether the packet is a start packet, whether the packet is a retransmission packet, whether the packet is a first switch packet, whether the packet is a second switch packet, Whether or not the packet is an out-of-range packet, whether or not the packet is out of the range, whether or not the accumulated data has reached the target data, whether or not the accumulated data has not reached the target data, And whether the received packet is a trailing packet that is expected to be received after receiving the preceding packet.
It can be determined whether or not the packet is a new packet that has not been received previously. It can be determined whether or not the received packet is a previously received packet based on the cumulative data up to the received time point.
It may be determined whether the packet is a start packet that declares that a new communication connection is to be started. The initiation packet may be a packet that is generated to declare that a new communication connection is initiated after the mutual verification procedure between the sender and the recipient is terminated.
It can be determined whether or not the packet is a retransmission packet. A retransmission packet may be generated when a sender sends a packet and then receives a retransmission request from the receiver. Alternatively, the retransmission packet may be generated when a certain time has elapsed after the sender has sent a packet, but has not received acknowledgment of a packet from the receiver.
It can be determined whether or not the packet is a state transition packet. The state transition packet may be a first state transition packet generated when the sender state is switched in the communication connection and may be the second state transition packet in which the receiver state is switched by receiving the communication connection recipient.
It can be determined whether the packet is a termination packet that declares that the communication connection is terminated. The termination packet may be a packet generated to declare that the communication connection that was created after the data exchange between the sender and the recipient is terminated is terminated.
It can be determined whether or not the packet is out of the range. The out-of-range packet may be a packet generated in a manner not defined in the communication protocol.
It can be determined whether or not the cumulative data has reached the target data. Further, it can be judged whether or not the accumulated data has not reached the target data. Here, the accumulated data may be formed by accumulating packets, and the target data may be the transmission target of the communication connection.
It can be determined whether or not a trailing packet that is expected to be received after the preceding packet has not been received even though a predetermined time has elapsed since the time when the preceding packet was received.
The monitoring condition can be generated in an application running on the operating system. That is, some of the monitoring conditions may not be provided fundamentally in the operating system. In addition, the monitoring condition generated by the application may be a combination of two or more monitoring conditions fundamentally provided in the operating system. The generated monitoring conditions can also be used on the operating system as well as the basic monitoring conditions.
At least one of the monitoring target packet or the monitoring target data may be transmitted (S240) to the application by the operating system program recorded on the storage medium. That is, when a packet or cumulative data corresponds to a monitoring condition, at least one of a monitored packet or monitored data may be delivered to an application. Here, the scope of transmitting the monitoring target packet and the monitoring target data can be determined by the application application.
A processing job indicated by the application program may be executed (S260) by the operating system program recorded on the storage medium. Here, the processing operation can be generated based on at least one of the monitored packet or the monitored data. According to the embodiment, different processing tasks can be created in a plurality of application applications, and a processing task can be created only in some application applications.
The storage medium according to embodiments of the present invention may provide an operating system program used in the communication monitoring apparatus and the communication monitoring method.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments, but, on the contrary, And may be modified and changed by those skilled in the art. For example, in the above description, it is exemplified whether the packet is a new packet under the monitoring condition, but the type of the monitoring condition is not limited thereto.
The present invention can be applied variously to the network security industry. For example, the present invention can be applied to a communication service provider, a network service provider, and the like.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. You will understand.
120: packet receiver
140, 240: Application driver
242: Operating system
244-1, 244-2: Application Application
Claims (15)
And an application driver for monitoring the packet based on an application program running on the operating system,
Wherein the application driver determines on the operating system whether the packet or the cumulative data formed by accumulating the packet is a monitored packet or monitored data corresponding to a predetermined monitoring condition, Deliver one or more to the application,
Wherein the monitoring condition for the packet includes whether the packet is a new packet not previously received, whether the packet is an initiation packet that declares a new communication connection to be initiated, whether the packet is a retransmission packet, , Whether the packet is a first state transition packet generated when a caller state is switched in the communication connection, whether the packet is a second state transition packet in which the receiver state is switched by receiving a receiver of the communication connection , Whether the packet is a termination packet that declares the termination of the communication connection, whether the packet is an out-of-flow packet generated in a manner not defined in the communication protocol, The packet received after a predetermined time elapses from the reception time is received after the reception of the preceding packet Communication monitoring device comprises at least one of whether or not the trailing packet is expected to.
Wherein the application driver performs the processing operation.
And monitoring the packet based on an application program running on the operating system,
The monitoring step
Determining on the operating system whether the packet or the cumulative data formed by accumulating the packet is a monitored packet or monitored data corresponding to a predetermined monitoring condition; And
And transmitting at least one of the monitoring target packet and the monitoring target data to the application application,
Wherein the monitoring condition for the packet includes whether the packet is a new packet not previously received, whether the packet is a start packet declaring that a new communication connection is to be started, whether the packet is a retransmission packet, Whether the packet is a first state transition packet generated when a sender state changes in a connection, whether the packet is a second state transition packet in which a recipient state is switched by receiving a recipient of the communication connection, Whether or not the packet is out of the range generated in a manner not defined in the communication protocol, or whether or not the packet received after a predetermined time has elapsed from the reception time of the preceding packet is the out- Whether or not it is a trailing packet expected to be received after reception And at least one of the at least two of the at least two of the plurality of communication terminals.
Further comprising: performing a processing task instructed by the application based on at least one of the monitoring target packet and the monitoring target data.
Transmitting at least one of the monitored packet or the monitored data to an application program; And
And performing a processing task instructed by the application based on at least one of the monitored packet and the monitored data,
Wherein the monitoring condition for the packet includes whether the packet is a new packet not previously received, whether the packet is a start packet declaring that a new communication connection is to be started, whether the packet is a retransmission packet, Whether the packet is a first state transition packet generated when a sender state changes in a connection, whether the packet is a second state transition packet in which a recipient state is switched by receiving a recipient of the communication connection, Whether or not the packet is out-of-range packet generated in a manner not defined in the communication protocol, or whether the packet received after a predetermined time has elapsed from the reception time of the preceding packet is the out- Whether or not it is a trailing packet expected to be received after reception A computer-readable storage medium storing an operating system program for executing a communication monitoring method including at least one program on a terminal.
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| KR1020160026333A KR101820117B1 (en) | 2016-03-04 | 2016-03-04 | Communication monitoring device, method of monitoring communication and storage media of middle-box operating system implementing the same |
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| KR1020160026333A KR101820117B1 (en) | 2016-03-04 | 2016-03-04 | Communication monitoring device, method of monitoring communication and storage media of middle-box operating system implementing the same |
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Non-Patent Citations (1)
| Title |
|---|
| 박경수, "미들박스 서비스를 위한 전용 소프트웨어 플랫폼과 네트워크 기능 가상화", 스마트인터넷/미래네트워크, 정보와 통신, 한국통신학회 (2014.06.)* |
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