CN115567391A - Terminal upgrading system and method in industrial control environment - Google Patents

Terminal upgrading system and method in industrial control environment Download PDF

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Publication number
CN115567391A
CN115567391A CN202211199511.1A CN202211199511A CN115567391A CN 115567391 A CN115567391 A CN 115567391A CN 202211199511 A CN202211199511 A CN 202211199511A CN 115567391 A CN115567391 A CN 115567391A
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China
Prior art keywords
upgrading
update
address
terminal
updating
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CN202211199511.1A
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Chinese (zh)
Inventor
云淑林
郭炳峰
刘群峰
鲍春香
刘雨轩
何楠
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Zhongneng Integrated Smart Energy Technology Co Ltd
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Zhongneng Integrated Smart Energy Technology Co Ltd
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Priority to CN202211199511.1A priority Critical patent/CN115567391A/en
Publication of CN115567391A publication Critical patent/CN115567391A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/04—Network management architectures or arrangements
    • H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/20—Network management software packages

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)
  • Stored Programmes (AREA)

Abstract

The invention provides a terminal upgrading system and a terminal upgrading method in an industrial control environment. Wherein, the system includes: customizing a terminal, agent software and an updating center; the customized terminal carries out update configuration and update request to obtain an update request message comprising a source IP, a destination IP and update information and sends the update request message to the agent software; after receiving the update request message, the agent software modifies the source IP of the update request message into the IP of an address pool configured by the agent, modifies the destination IP of the message into the IP of an update center, and then sends the message of modifying the IP to the update center; and after receiving the message for modifying the IP, the updating center compares the updating information and judges whether the updating is needed. According to the scheme provided by the invention, the version is upgraded by connecting the field side equipment installation agent software to the updating center in the industrial control closed network; from the security point of view, messages from the customized terminal to the agent software and messages from the agent software to the updating center are encrypted.

Description

Terminal upgrading system and method in industrial control environment
Technical Field
The invention belongs to the field of industrial control, and particularly relates to a terminal upgrading system and method in an industrial control environment.
Background
The network security events of the industrial control system are frequent, wherein the security events caused by software upgrading account for a large proportion, and the overall security and stability of the software upgrading of the industrial control network become more and more uncontrollable. The upgrade methods commonly used in the industry at present are: 1. point-to-point upgrading: the address of the update node needs to be directly configured, the mode is that important information of the update node can be hidden, and potential safety hazard 2 exists, and a flow channel for software upgrading is not encrypted. If the 'man-in-the-middle' monitoring occurs, the updated flow data can be directly analyzed 3. The updated strategy is generally configured coarsely, whether the lics exist is checked according to the serial number to determine whether the upgrading is carried out, and the mode has few customized strategies and is inflexible
Disclosure of Invention
In order to solve the technical problems, the invention provides a technical scheme of a terminal upgrading system and a terminal upgrading method in an industrial control environment, so as to solve the technical problems.
The first aspect of the invention discloses a terminal upgrading system under industrial control environment, which comprises:
the system comprises: customizing a terminal, agent software and an updating center;
the customized terminal carries out update configuration and update request to obtain an update request message comprising a source IP address, a destination IP address and update information, and sends the update request message to the agent software;
after the agent software receives the update request message, modifying the source IP address of the update request message into the IP address of an address pool configured by the agent, modifying the destination IP address of the message into the IP address of an update center, and then sending the message of modifying the IP address to the update center;
and after receiving the message for modifying the IP address, the updating center compares the updating information and judges whether the updating is needed.
According to the system of the first aspect of the present invention, the destination port of the update request packet is 50000-50010;
and after receiving the update request message, the agent software restores the TCP layer of the update request message and detects whether the destination port of the TCP protocol is 50000-50010.
According to the system of the first aspect of the present invention, the update information includes: serial number, terminal model, address location, organizational relationship, and last update time.
The second aspect of the present invention discloses a terminal upgrading method in an industrial control environment, wherein the method is applied to the system of any one of the first aspect, and the method includes:
s1, uploading a version needing to be upgraded by an updating center, wherein the version comprises a version file and a version description file;
s2, updating a central configuration updating strategy;
s3, configuring agent software;
s4, the customized terminal sets an update destination IP address/domain name and triggers update information to obtain an update request message; the destination IP address/domain name is the address of the agent software;
s5, firstly, an encrypted channel is created by the customized terminal and the agent software, and after the encrypted channel is successfully created, the customized terminal sends an encrypted updating request message with a destination port of 50000-50010 to the agent software;
s6, after the agent software receives the update request message, modifying the source IP address of the update request message into the IP address of the address pool of the agent software, modifying the destination IP address of the message into the IP address of an update center, and then sending the message of modifying the IP address to the update center;
s7, after receiving the message for modifying the IP address, the updating center compares the updating information according to the updating strategy and judges whether the updating is needed;
s8, if the updating is not needed, the updating center returns to the version without updating;
s9, if the upgrading is needed, the upgrading center returns the upgrading version number and the upgrading information of the modified content of the upgrading version;
s10, after receiving the upgrading information, the customizing terminal downloads an upgrading version;
step S11, after the downloading and the upgrading are finished, the customized terminal sends an updating request message to the updating center again through the agent software;
and S12, repeating the step S7 to the step S10 until the update center returns the no-update version.
According to the method of the second aspect of the present invention, in the step S2, the method for configuring the update policy by the update center includes:
configuring the upgrading sequence of the versions;
and (3) a serial number upgrading strategy: predefining an upgradable sequence number group and an upgradable sequence number group;
a terminal model upgrading strategy: predefining an upgradable terminal model group and an upgradable terminal model group;
location information upgrade strategy: predefining an upgradable location and an upgradable location;
and (3) organizing a relationship upgrading strategy: predefining an upgradable terminal membership organization relation and an upgradable terminal membership organization relation;
updating the time strategy: the version upgraded at the first preset time is not allowed to be upgraded, and the version before the second preset time is upgraded at a high priority level.
According to the method of the second aspect of the present invention, in the step S3, the method of proxy software configuration includes:
configuring an IP address, a network segment and an IP range of a white list of an updating request message;
configuring an IP address of an address pool;
and configuring the IP address of the updating center as the destination IP of the message for modifying the IP address.
According to the method of the second aspect of the present invention, in step S7, after the update center receives the message for modifying the IP address, the method for comparing the update information according to the update policy and determining whether the update is required includes:
step S71, checking the serial number upgrading strategy, if the serial number is in the serial number group which can not be upgraded, finishing upgrading, and if not, entering the next step;
step S72, checking the terminal model upgrading strategy, if the terminal model is in the terminal model group which can not be upgraded, finishing upgrading, and if not, entering the next step;
s73, checking the position information upgrading strategy, if the address position is at the position which can not be upgraded, ending the upgrading, and if not, entering the next step;
s74, checking the organizational relationship upgrading strategy, if the organizational relationship is affiliated to the organizational relationship at a terminal which cannot be upgraded, finishing upgrading, and if not, entering the next step;
step S75, checking the update time policy, T 0 ＝T Current time -T Time of update When T is 0 If the time is longer than the first preset time, finishing upgrading, otherwise, performing upgrading, wherein T 0 Judging time for upgrading, T Current time For the current time, T Update time Uploading the uploading time of the version needing to be upgraded for the updating center.
A third aspect of the invention discloses an electronic device. The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the steps of the method for upgrading the terminal in the industrial control environment according to any one of the second aspect of the disclosure.
A fourth aspect of the invention discloses a computer-readable storage medium. The computer readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the computer program implements the steps in the method for upgrading a terminal in an industrial control environment according to any one of the second aspect of the present disclosure.
The proposal of the invention is that the device comprises a power supply,
1. the method comprises the following steps that (1) agent software is installed in an industrial control closed network through field side equipment and is connected to an updating center to realize version updating;
2. the customized terminal does not need to configure the IP address of the updating center, and only needs to directly configure the proxy software address, and the address of the updating center can hide the terminal;
3. the updating center controls the version updating strategy of each serial number and each customized terminal of each terminal group;
4. the updating center can control the upgrading of the terminal of each organization relation, for example, all the terminals of the xx group can be configured to be upgraded;
5. in view of security, messages from the customized terminal to the agent software and messages from the agent software to the updating center are encrypted, and a counterfeit middleman cannot acquire related information through the updating messages.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a terminal upgrading method in an industrial control environment according to an embodiment of the present invention;
fig. 2 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a terminal upgrading system in an industrial control environment in a first aspect. The problem that the terminal needs to be configured with an update node is solved by adding agent software in the middle; the problem of intermediate data security is ensured by customizing a terminal and agent software, encrypting the agent software and an updating center communication channel; and various customized strategies are configured by the updating center to flexibly control the terminal upgrading. Wherein the system comprises: customizing a terminal, agent software and an updating center;
the customized terminal carries out update configuration and update request to obtain an update request message comprising a source IP address, a destination IP address and update information, and sends the update request message to the agent software; the sending destination port of the updating request message is 50000-50010;
the agent software has the functions of detecting, modifying and sending messages.
After the agent software receives the updating request message, the agent software restores the TCP layer of the updating request message after receiving the updating request message, and whether the target port of the TCP protocol is 50000-50010 is detected; modifying the source IP address of the update request message into the IP address of an address pool configured by the agent, modifying the destination IP address of the message into the IP address of an update center, and then sending the message with the modified IP address to the update center;
after receiving the message for modifying the IP address, the updating center compares the updating information and judges whether the updating is needed; the update information includes: serial number, terminal model, address location, organizational relationship, and last update time.
The updating center can upload files, issue updating strategies and update analysis, the updating center runs a linux system, applications such as nginx and mysql are installed, the nginx is responsible for communication, the mysql is responsible for storing various information, and the php is responsible for creating pages.
The method comprises the steps that a customized terminal and agent software are deployed in a newly-built safety zone of a station, and an updating center is deployed at a center side, wherein the agent software and a server of a platform at the station side are deployed on the server;
the customization terminal and the agent software network are accessible, and the customization terminal is not needed and can be accessed by an updating center network;
the agent software and the update center network are accessible;
the customized terminal sends the update to the agent software, and the agent software processes the update and then forwards the update to the update center; and after the updating center processes the information, the information is replied to the customization terminal according to the steps.
The second aspect of the invention discloses a terminal upgrading method in an industrial control environment, which is applied to the system in any one of the first aspect. Fig. 1 is a flowchart of a terminal upgrading method in an industrial control environment according to an embodiment of the present invention, and as shown in fig. 1, the method includes:
s1, uploading a version needing to be upgraded by an updating center, wherein the version comprises a version file and a version description file;
s2, configuring an updating strategy by an updating center;
s3, configuring agent software;
s4, the customized terminal sets an update destination IP address/domain name and triggers update information to obtain an update request message; the destination IP address/domain name is the address of the agent software;
s5, firstly establishing an encryption channel by the customized terminal and the agent software, and after the encryption channel is successfully established, sending an encrypted updating request message with a destination port of 50000-50010 to the agent software by the customized terminal;
s6, after the agent software receives the update request message, modifying the source IP address of the update request message into the IP address of the address pool of the agent software, modifying the destination IP address of the message into the IP address of an update center, and then sending the message of modifying the IP address to the update center;
s7, after receiving the message for modifying the IP address, the updating center compares updating information according to the updating strategy and judges whether the updating is needed or not;
s8, if the updating is not needed, the updating center returns to the non-updating version;
s9, if the upgrading is needed, the updating center returns the version number of the upgrading and the upgrading information of the modified content of the version of the upgrading;
s10, after receiving the upgrading information, the customizing terminal downloads an upgrading version;
step S11, after the downloading and the upgrading are finished, the customized terminal sends an updating request message to the updating center again through the agent software;
and S12, repeating the step S7 to the step S10 until the update center returns the no-update version.
In some embodiments, in the step S2, the method for configuring the update policy by the update center includes:
configuring the upgrading sequence of the versions;
the sequence number upgrading strategy is as follows: predefining an upgradable sequence number group and an upgradable sequence number group;
terminal model upgrading strategy: predefining an upgradable terminal model group and an upgradable terminal model group;
the location information upgrading strategy is as follows: predefining an upgradable location and an upgradable location;
and (3) organizing a relationship upgrading strategy: predefining an upgradable terminal membership organization relation and an upgradable terminal membership organization relation;
updating the time strategy: the version upgraded at the first preset time is not allowed to be upgraded, and the version before the second preset time is upgraded at a high priority level.
In some embodiments, in the step S3, the method for agent software configuration includes:
configuring an IP address, a network segment and an IP range of a white list of an updating request message;
configuring an IP address of an address pool;
and configuring the IP address of the updating center as the destination IP of the message for modifying the IP address.
In some embodiments, after receiving the message for modifying the IP address, the update center compares update information according to the update policy, and determines whether the update is needed to be performed includes:
step S71, checking the serial number upgrading strategy, if the serial number is in the serial number group which can not be upgraded, finishing upgrading, and if not, entering the next step;
step S72, checking the terminal model upgrading strategy, if the terminal model is in the terminal model group which can not be upgraded, finishing upgrading, and if not, entering the next step;
s73, checking the position information upgrading strategy, if the address position is at the position which can not be upgraded, ending the upgrading, and if not, entering the next step;
s74, checking the organization relation upgrading strategy, if the organization relation is subordinate to the organization relation at a terminal which cannot be upgraded, ending the upgrading, otherwise, entering the next step;
step S75, checking the update time policy, T 0 ＝T Current time -T Update time When T is 0 If the time is longer than the first preset time, finishing upgrading, otherwise, performing upgrading, wherein T 0 To upgrade the judgment time, T Current time For the current time, T Update time Uploading the uploading time of the version needing to be upgraded for the updating center.
In conclusion, the solution proposed by the present invention enables,
1. the method comprises the following steps that (1) agent software is installed in an industrial control closed network through field side equipment and is connected to an updating center to realize version updating;
2. the customized terminal does not need to configure the IP address of the updating center, and only needs to directly configure the proxy software address, and the address of the updating center can hide the terminal;
3. the updating center controls the version updating strategy of each serial number and each customized terminal of each terminal group;
4. the updating center can control the upgrading of the terminal of each organization relation, for example, all the terminals of xx group can be configured to be upgraded;
5. in view of security, messages from the customized terminal to the agent software and messages from the agent software to the updating center are encrypted, and a counterfeit middleman cannot acquire related information through the updating messages.
A third aspect of the invention discloses an electronic device. The electronic device comprises a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the steps of the method for upgrading the terminal in the industrial control environment disclosed by any one of the second aspects of the invention are realized.
Fig. 2 is a block diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 2, the electronic device includes a processor, a memory, a communication interface, a display screen, and an input device, which are connected by a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The communication interface of the electronic device is used for communicating with an external terminal in a wired or wireless mode, and the wireless mode can be realized through WIFI, an operator network, near Field Communication (NFC) or other technologies. The display screen of the electronic equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the electronic equipment, an external keyboard, a touch pad or a mouse and the like.
It will be understood by those skilled in the art that the structure shown in fig. 2 is only a partial block diagram related to the technical solution of the present disclosure, and does not constitute a limitation to the electronic device to which the technical solution of the present disclosure is applied, and a specific electronic device may include more or less components than those shown in the figure, or combine some components, or have different arrangements of components.
A fourth aspect of the invention discloses a computer-readable storage medium. The computer readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the computer program implements the steps in the method for upgrading a terminal in an industrial control environment according to any one of the second aspects of the disclosure.
It should be noted that the technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered. The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. A terminal upgrading system used in an industrial control environment, the system comprising: customizing a terminal, agent software and an updating center;
the customized terminal carries out update configuration and update request to obtain an update request message comprising a source IP address, a destination IP address and update information, and sends the update request message to the agent software;
after receiving the update request message, the agent software modifies the source IP address of the update request message into the IP address of the address pool configured by the agent, modifies the destination IP address of the message into the IP address of the update center, and then sends the message of modifying the IP address to the update center;
and after receiving the message for modifying the IP address, the updating center compares the updating information and judges whether the updating is needed.
2. The system for upgrading a terminal in an industrial control environment according to claim 1, wherein a destination port of the update request packet is 50000-50010;
and after receiving the update request message, the agent software restores the TCP layer of the update request message and detects whether the destination port of the TCP protocol is 50000-50010.
3. The system for upgrading a terminal in an industrial control environment according to claim 1, wherein the update information includes: serial number, terminal model, address location, organizational relationship, and last update time.
4. A terminal upgrading method in an industrial control environment is characterized in that the method is applied to the system of any one of claims 1-3, and the specific method comprises the following steps:
s1, uploading a version needing to be upgraded by an updating center, wherein the version comprises a version file and a version description file;
s2, configuring an updating strategy by an updating center;
s3, configuring agent software;
s4, the customized terminal sets an update destination IP address/domain name and triggers update information to obtain an update request message; the destination IP address/domain name is the address of the agent software;
s5, firstly, an encrypted channel is created by the customized terminal and the agent software, and after the encrypted channel is successfully created, the customized terminal sends an encrypted updating request message with a destination port of 50000-50010 to the agent software;
s6, after the agent software receives the update request message, modifying the source IP address of the update request message into the IP address of the address pool of the agent software, modifying the destination IP address of the message into the IP address of an update center, and then sending the message of modifying the IP address to the update center;
s7, after receiving the message for modifying the IP address, the updating center compares updating information according to the updating strategy and judges whether the updating is needed or not;
s8, if the updating is not needed, the updating center returns to the version without updating;
s9, if the upgrading is needed, the updating center returns the version number of the upgrading and the upgrading information of the modified content of the version of the upgrading;
s10, after receiving the upgrading information, the customizing terminal downloads an upgrading version;
step S11, after the downloading and the upgrading are finished, the customized terminal sends an updating request message to the updating center again through the agent software;
and S12, repeating the step S7 to the step S10 until the update center returns the no-update version.
5. The method for upgrading a terminal in an industrial control environment according to claim 4, wherein in the step S2, the method for configuring the update policy by the update center includes:
configuring the upgrading sequence of the versions;
the sequence number upgrading strategy is as follows: predefining an upgradable sequence number group and an upgradable sequence number group;
terminal model upgrading strategy: predefining an upgradable terminal model group and an upgradable terminal model group;
the location information upgrading strategy is as follows: predefining an upgradable location and an upgradable location;
and (3) organizing a relationship upgrading strategy: predefining an upgradable terminal membership organization relation and an upgradable terminal membership organization relation;
updating the time strategy: the version upgraded at the first preset time is not allowed to be upgraded, and the version before the second preset time is upgraded at a high priority level.
6. The method for upgrading a terminal in an industrial control environment according to claim 1, wherein in the step S3, the method for configuring the agent software includes:
configuring an IP address, a network segment and an IP range of a white list of an updating request message;
configuring an IP address of an address pool;
and configuring the IP address of the updating center as the destination IP of the message for modifying the IP address.
7. The method for upgrading a terminal in an industrial control environment according to claim 5, wherein in the step S7, after the update center receives the message for modifying the IP address, the method for comparing the update information according to the update policy and determining whether the terminal needs to be upgraded includes:
step S71, checking the serial number upgrading strategy, if the serial number is in the serial number group which can not be upgraded, finishing upgrading, and if not, entering the next step;
step S72, checking the terminal model upgrading strategy, if the terminal model is in the terminal model group which can not be upgraded, finishing upgrading, and if not, entering the next step;
s73, checking the position information upgrading strategy, if the address position is at the position which can not be upgraded, ending the upgrading, and if not, entering the next step;
s74, checking the organization relation upgrading strategy, if the organization relation is subordinate to the organization relation at a terminal which cannot be upgraded, ending the upgrading, otherwise, entering the next step;
step S75, checking the update time policy, T 0 ＝T Current time- T Time of update When T is 0 If the time is longer than the first preset time, the upgrading is finished, otherwise, the upgrading is carried out, wherein T 0 Judging time for upgrading, T Current time of day For the current time, T Time of update And uploading the uploading time of the version needing to be upgraded for the updating center.
8. An electronic device, characterized in that the electronic device comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the steps in the terminal upgrading method in an industrial control environment according to any one of claims 1 to 6.
9. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps in the method for upgrading a terminal in an industrial control environment according to any one of claims 1 to 6.
CN202211199511.1A 2022-09-29 2022-09-29 Terminal upgrading system and method in industrial control environment Pending CN115567391A (en)

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Application Number Priority Date Filing Date Title
CN202211199511.1A CN115567391A (en) 2022-09-29 2022-09-29 Terminal upgrading system and method in industrial control environment

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CN115567391A true CN115567391A (en) 2023-01-03

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