CN112187911A - Message transmission method, device, storage medium and system based on network isolation - Google Patents

Message transmission method, device, storage medium and system based on network isolation Download PDF

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Publication number
CN112187911A
CN112187911A CN202011011496.4A CN202011011496A CN112187911A CN 112187911 A CN112187911 A CN 112187911A CN 202011011496 A CN202011011496 A CN 202011011496A CN 112187911 A CN112187911 A CN 112187911A
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network
message
cross
communication connection
storage component
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刘登科
王云慧
孙军
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Suzhou Keda Technology Co Ltd
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Suzhou Keda Technology Co Ltd
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Priority to CN202011011496.4A priority Critical patent/CN112187911A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0227—Filtering policies
    • H04L63/0236—Filtering by address, protocol, port number or service, e.g. IP-address or URL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The application relates to a message transmission method, a device, a storage medium and a system based on network isolation, belonging to the technical field of communication, wherein the method comprises the following steps: receiving a cross-network transmission message of a user terminal accessed to a first network to a second network, wherein the cross-network transmission message carries destination terminal information and message content; when a first communication connection between first equipment and a preset storage assembly is communicated, sending cross-network transmission information to the storage assembly for storage based on the first communication connection; the storage component disconnects the first communication connection and establishes a second communication connection with the second device; the second device reads the cross-network transmission message stored in the storage component based on the second communication connection, and sends message content to the destination terminal indicated by the destination terminal information through a second network; the problem of network intrusion or information leakage can be solved; physical isolation of the first network and the second network is realized; meanwhile, the processing of the service can be realized; the message transmission process can be traced.

Description

Message transmission method, device, storage medium and system based on network isolation
Technical Field
The application relates to a message transmission method, a message transmission device, a message transmission storage medium and a message transmission system based on network isolation, and belongs to the technical field of communication.
Background
Network isolation refers to a technique for exchanging information and sharing resources on the basis of disconnection between two or more computers or networks. Common network isolation techniques include: firewalls, trusted boundaries, gatekeepers, and the like.
The firewall is a protection barrier constructed on the network boundary of two networks needing isolation, and the communication monitoring system arranged on the network boundary releases the admitted access, so that network intrusion, attack and the like are blocked, and the isolation effect is achieved. However, the firewall cannot identify the application layer, is invalid for attacks hidden in the application, can only reduce the access risk of an insecure network, and has a lower security protection level.
The trusted boundary is deployed between two networks needing isolation, and grants access to access users and addresses. However, the trusted boundary cannot detect the exchanged content, so that even if the data carries an unsafe factor, the data cannot be perceived, and the security of the data transmission process is low.
The network gate is a gate connected with a network, so that two networks needing to be isolated are not communicated at the same time, and data are ferred through a storage medium. However, the gatekeeper needs to support service connectivity, so the gatekeeper opens a proxy service channel of a protocol, and potential safety hazards exist in the data transmission process.
The network isolation methods all belong to the logic isolation category, and the security of the data transmission process is not high.
Disclosure of Invention
The application provides a message transmission method, a message transmission device and a storage medium based on network isolation, which can solve the problems of network intrusion or information leakage in the existing network isolation method. The application provides the following technical scheme:
in a first aspect, a message transmission method based on network isolation is provided, and is used in a first device, where the first device accesses a first network, and the method includes:
receiving a cross-network transmission message of a user terminal accessed to the first network to a second network, wherein the cross-network transmission message carries destination terminal information and message content;
when a first communication connection between the first device and a preset storage assembly is connected, sending the cross-network transmission message to the storage assembly for storage based on the first communication connection, so as to trigger the storage assembly to disconnect the first communication connection and establish a second communication connection with a second device accessed to the second network; the second communication connection is used for the second device to read the cross-network transmission message stored in the storage component and to send the message content to the destination indicated by the destination information through the second network.
Optionally, the cross-network transmission message further includes communication protocol information, where the communication protocol information is used to instruct the second device to send a communication protocol of the message content to the destination.
Optionally, after receiving a cross-network transmission message to a second network from a user accessing the first network, the method further includes:
configuring the cross-network transmission message to obtain configuration information;
and sending the configuration information to the storage component for storage based on the first communication connection, so that the second equipment processes the cross-network transmission message according to the configuration information.
Optionally, the configuring the cross-network transmission message to obtain configuration information includes:
configuring an access port of the cross-network transmission message, wherein the access port comprises an access port of the destination terminal and an access port of the second device;
and/or the presence of a gas in the gas,
configuring the message type of the cross-network transmission message;
and/or the presence of a gas in the gas,
and configuring the transmission direction of the cross-network transmission message.
Optionally, the cross-network transmission message is a cross-network access request or cross-network data;
the cross-network access request is used for requesting to access the destination terminal in the second network;
the cross-network data is data transmitted to the destination in the second network.
In a second aspect, a message transmission method based on network isolation is provided, and is used in a second device, where the second device accesses a second network, and the method includes:
establishing a second communication connection with a preset storage component, wherein the second communication connection is established after the storage component receives and stores a cross-network transmission message sent by first equipment accessed to a first network, the cross-network transmission message is sent to the first equipment by a user side accessed to the first network and is stored to the storage component by the first equipment based on a first communication connection between the first equipment and the storage component, and the first communication connection is disconnected after the storage component stores the cross-network transmission message; the cross-network transmission message carries destination terminal information and message content;
reading the cross-network transmission message stored in the storage component based on the second communication connection;
and sending the message content to the destination terminal indicated by the destination terminal information through the second network.
Optionally, the method further comprises:
reading configuration information of the cross-network transmission message stored in the storage component based on the second communication connection;
analyzing the configuration information;
and processing the cross-network transmission message according to the analyzed information.
Optionally, the method further comprises:
configuring a subscription relationship of the second device, wherein the subscription relationship comprises a subscription relationship between the second device and the first device;
the reading the cross-network transmission message stored in the storage component based on the second communication connection comprises:
reading the cross-network transmission message indicated by the subscription relationship in the storage component based on the second communication connection.
Optionally, the method further comprises:
and sending the cross-network transmission message indicated by the subscription relation to a designated node for storage.
In a third aspect, a message transmission method based on network isolation is provided, and is used in a storage component, where the method includes:
receiving and storing a cross-network transmission message to a second network, which is sent by first equipment when the first communication connection between the first equipment and the first equipment accessed to a first network is communicated, wherein the cross-network transmission message carries destination terminal information and message content;
disconnecting the first communication connection and establishing a second communication connection with a second device accessing the second network;
and transmitting the cross-network transmission message to the second equipment based on the second communication connection so as to enable the second equipment to send the message content to a destination terminal indicated by the destination terminal information through the second network.
In a fourth aspect, a message transport apparatus based on network isolation is provided, the apparatus comprising a processor and a memory; the memory stores a program, which is loaded and executed by the processor to implement the message transmission method based on network isolation according to the first aspect; or, implementing the message transmission method based on network isolation according to the second aspect; or, implementing the message transmission method based on network isolation according to the third aspect.
In a fifth aspect, a computer-readable storage medium is provided, in which a program is stored, the program being loaded and executed by the processor to implement the message transmission method based on network isolation of the first aspect; or, implementing the message transmission method based on network isolation according to the second aspect; or, implementing the message transmission method based on network isolation according to the third aspect.
In a sixth aspect, a message transmission system based on network isolation, the system comprising a first device, a second device, and a storage component; the first equipment is accessed to a first network, and the second equipment is accessed to a second network;
the first device is configured to receive a cross-network transmission message of a user end accessing the first network to the second network, where the cross-network transmission message carries destination end information and message content; when a first communication connection between the first device and the storage component is connected, sending the cross-network transmission message to the storage component for storage based on the first communication connection;
the storage component is used for receiving and storing the cross-network transmission message of the second network sent by the first equipment when the first communication connection between the storage component and the first equipment is connected; disconnecting the first communication connection and establishing a second communication connection with the second device; transmitting the cross-network transfer message to the second device based on the second communication connection;
the second device is configured to, after establishing a second communication connection with the storage component, read the cross-network transmission message stored in the storage component based on the second communication connection; and sending the message content to the destination terminal indicated by the destination terminal information through the second network.
The beneficial effect of this application lies in: by arranging the first equipment, the second equipment and the storage component, the storage component has the attribute of a single-pole multi-throw switch, so that the physical isolation of a first network accessed by the first equipment and a second network accessed by the second equipment can be realized, and the risk of network intrusion or information leakage is avoided; meanwhile, the processing of the service can be realized. In addition, the interactive process of the message is recorded through the storage component, and the message transmission process can be traced.
In addition, by recording the communication protocol information used in the message transmission process, the data transmission system does not need to configure the implementation mode of the communication protocol, and supports the transmission based on various communication protocols.
In addition, the second device can flexibly process the cross-network transmission message by configuring the cross-network transmission message.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a message transmission system based on network isolation according to an embodiment of the present application;
FIG. 2 is a message transmission diagram of a message transmission system based on network isolation according to an embodiment of the present application;
FIG. 3 is a flow chart of a message transmission method based on network isolation according to an embodiment of the present application;
FIG. 4 is a diagram illustrating a message transmission method based on network isolation according to an embodiment of the present application;
FIG. 5 is a block diagram of a message transmission apparatus based on network isolation according to an embodiment of the present application;
FIG. 6 is a block diagram of a message transmission device based on network isolation according to another embodiment of the present application;
FIG. 7 is a block diagram of a message transmission apparatus based on network isolation according to another embodiment of the present application;
fig. 8 is a block diagram of a message transmission apparatus based on network isolation according to still another embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Fig. 1 is a schematic structural diagram of a message transmission system based on network isolation according to an embodiment of the present application, and as shown in fig. 1, the system at least includes: a first device 110 accessing a first network, a storage component 120, and a second device 130 accessing a second network.
The first network and the second network are two networks that need network isolation, such as: the first network is a public security network, and the second network is a video network; alternatively, the first network is a public security network, the second network is an independent network of another type, and the present embodiment does not limit the network types of the first network and the second network.
The first device 110 and the second device 130 may be a computer, a tablet computer, a personal computer, or the like, and the present embodiment does not limit the device types of the first device 110 and the second device 130.
The protocol pipe program runs in both the first device 110 and the second device 130. The protocol pipe programs in the first device 110 and the second device 130 do not establish a communication connection with the storage component 120 at the same time, so that network isolation between the first network and the second network is realized, that is, the network isolation is physical isolation, and only one protocol pipe program in one device establishes a communication connection with the storage component 120 at the same time.
The protocol pipe program is configured to listen to the cross-network transmission message received by the corresponding device (the first device 110 or the second device 130), and write the cross-network transmission message into the storage component 120. The protocol pipe program has information statistics attribute and supports persistent record action. Optionally, after monitoring the cross-network transmission message, the protocol pipeline program stores the cross-network transmission message in a message log, and writes the message log in the storage component 120. The protocol pipe program can subscribe the cross-network transmission messages of other protocol pipe programs and aggregate the cross-network transmission messages to a designated node for storage. Wherein, the designated node is used for storing the message, and the number of the designated nodes can be one or more.
Optionally, before each protocol pipe program (including the protocol pipe program in the second device 130, and in some embodiments, also including the protocol pipe degree in the first device 110) runs, a subscription relationship of the protocol pipe program needs to be configured, and the manner of configuring the subscription relationship includes, but is not limited to, at least one of the following manners:
the first method comprises the following steps: other programs to which the protocol pipe program subscribes are preconfigured. The other programs may be independent application programs, or may also be a function module in a certain application program, and the present embodiment does not limit the types of the other programs. After subscribing to the other program, the protocol pipeline program can obtain a running log of the other program to store the running log to the storage component 120. At this time, the cross-network transfer message includes a log.
And the second method comprises the following steps: and pre-configuring other protocol pipeline programs subscribed by the protocol pipeline program, wherein the network accessed by the other protocol pipeline programs is different from the network accessed by the protocol pipeline program. After subscribing to the other protocol conduit program, if the other protocol conduit program issues the cross-network transmission message in the storage component 120, the protocol conduit program will read the cross-network transmission message from the storage component 120. The protocol pipeline program can read the message logs of other protocol pipeline programs from the storage component 120, and analyze the cross-network transmission message from the message logs; alternatively, the protocol pipe program may read directly from the storage component 120 to the cross-network transport message stored by the other protocol pipe program.
Optionally, the cross-network transmission message monitored by the protocol pipe program includes a cross-network transmission request, where the cross-network access request is used to request access to a destination in the second network; or, include cross-network data, which is data directed to a destination in the second network, such as: response data to the cross-network access request, or broadcast message data, a log, etc., and the present embodiment does not limit the type of the cross-network transmission message.
The storage component 120 is configured to store the cross-network transmission content transmitted by the first device 110 or the second device 130. The storage component 120 mainly completes data transportation, that is, data sent by the first device 110 is transported to the second device 130; alternatively, the data sent by the second device 130 is transported to the first device 110. The storage component 120 may be a storage medium supporting reading and writing, such as a Field Programmable Gate Array (FPGA), a hard disk, and the like. The storage component 120 is shared by the first device 110 and the second device 130, and the storage component 120 has the attribute of a single-pole multi-throw switch, which enables the first device 110 and the second device 130 not to have a two-side intercommunication condition, that is, during the cross-network data transmission process, there is no communication connection between the first device 110 and the second device 130 all the way, and the first network and the second network are completely isolated.
In this embodiment, the protocol pipeline program in the first device 110 is configured to: receiving a cross-network transmission message of a user terminal 140 accessing a first network to a second network, wherein the cross-network transmission message carries destination terminal information and message content; when a first communication connection between the first device 110 and a preset storage component 120 is connected, sending a cross-network transmission message to the storage component 120 for storage, so as to trigger the storage component 120 to disconnect the first communication connection and establish a second communication connection with a second device accessing a second network 130; the second communication connection is used for the second device 130 to read the cross-network transmission message stored in the storage component 120 and send the message content to the destination 150 indicated by the destination information through the second network.
Accordingly, the storage component 120 is configured to: receiving and storing a cross-network transmission message to a second network, which is sent by a first device 110, when the first communication connection with the first device 110 accessing the first network is connected; storing the cross-network transmission message; disconnecting the first communication connection and establishing a second communication connection with a second device 130 accessing a second network; and transmitting the cross-network transmission message to the second device 130 based on the second communication connection, so that the second device 130 sends the message content to the destination 150 indicated by the destination information through the second network.
Accordingly, the protocol pipeline program in the second device 130 is configured to: establishing a second communication connection with the preset storage component 120; reading the cross-network transmission message stored in the storage component 120 based on the second communication connection; the message content is transmitted over the second network to the destination 150 indicated by the destination information.
Optionally, the cross-network transmission message is recorded in a message log of the first device 110, and the first device 110 writes the message log into the storage component 120.
Optionally, the cross-network transmission message further includes communication protocol information, which is used to instruct the second device 130 to send the communication protocol of the message content to the destination 150. In this way, the second device 130 can send the message content according to the communication protocol indicated by the communication protocol, without imposing restrictions on the communication protocol used during data transmission.
In this embodiment, a transmitting party is taken as the first device 110, and a receiving party is taken as the second device 120, for example, in actual implementation, for each device, the device may be taken as both the first device 110 in this embodiment and the second device 120 in this embodiment, for example: the cross-network transmission message sent by the device is a cross-network transmission request, at this time, the device operates according to the operation mode of the first device 110, and if the device needs to acquire response data of the cross-network transmission request, at this time, the device operates according to the operation mode of the second device 120.
To more clearly understand the data transmission process provided in this embodiment, as an example of the data transmission process is described below, referring to fig. 2, after a protocol pipeline program in a device 21 (corresponding to a first device 110) receives an inter-network transmission request sent by a user terminal 140, the protocol pipeline program writes communication protocol information, destination information, and message content carried in the inter-network transmission request into a message log, and writes the message log into a storage component 120 based on a communication connection (corresponding to a first communication connection) with the storage component 120.
The storage component 120 receives and stores the message log sent by the device 21, disconnects the communication connection with the device 21, and establishes a communication connection (corresponding to a second communication connection) with the device 22, and the protocol pipe program in the device 22 has subscribed to the message log of the device 21, so that the protocol pipe program in the device 22 (corresponding to the second device 130) can read the message log from the storage component 120 based on the communication connection with the storage component 120, and send the message content to the destination 150 corresponding to the destination information according to the communication protocol indicated by the cross-network transmission request.
Then, if the protocol pipeline program in the device 22 (corresponding to the first device 110) monitors the request response to the message content, the protocol pipeline program writes the communication protocol information, the client information and the response data in the request response into the message log of the device 22, and writes the message log into the storage component 120 based on the communication connection (corresponding to the first communication connection) with the device 22. It should be noted that the communication protocol information in the request reply is the same as or different from the communication protocol information in the cross-network transmission request.
The storage component 120 receives and stores the message log sent by the device 22, disconnects the communication connection with the device 22, and establishes the communication connection with the device 21 again (corresponding to the first communication connection), and the protocol pipe program in the device 21 subscribes to the message log of the device 22, so that the protocol pipe program in the device 21 (corresponding to the second device 130) reads the message log from the storage component 120 based on the communication connection with the storage component 120 and sends the response data in the message log to the user terminal 140 corresponding to the user terminal information.
It should be added that fig. 2 illustrates bidirectional data transmission as an example, in practical implementation, the data transmission process may be unidirectional, for example: device 21 transmits the request to device 22 only through storage component 120; alternatively, the device 22 only transmits data to the device 21 through the storage component 120, and the data transmission direction is not limited in the present embodiment.
In addition, the number of the first device 110 and the second device 120 is one or more, and the present embodiment does not limit the number of the first device 110 and the second device 120.
In addition, the client 140 can be other programs running in the same device as the protocol pipe program; or, other devices independent of the device on which the protocol pipe program runs; alternatively, the implementation manner of the ue 140 is not limited in this embodiment, for the program in other devices independent from the device on which the protocol pipeline program operates. The first device 110 and the user end 140 establish a communication connection based on the first network, and the first device 110 and the user end 140 may have security software such as a firewall, and the present embodiment does not limit the communication method between the first device 110 and the user end 140.
Additionally, the destination 150 may be another program running in the same device as the protocol pipe program; or, other devices independent of the device on which the protocol pipe program runs; or, a program in another device independent of the device on which the protocol pipe program is running; the implementation of the ue 140 is not limited in this embodiment. The number of the destinations 150 corresponding to the same cross-network transmission message may be one or more, and fig. 1 and fig. 2 illustrate one destination 150 as an example, and when the cross-network transmission message is a broadcast-type message, the number of the destinations 150 may be multiple, and the embodiment does not limit the number of the destinations 150. The second device 130 and the destination 150 establish a communication connection based on a second network, and the second device 130 and the destination 150 may also have security software such as a firewall, and the present embodiment does not limit the communication method between the second device 130 and the user end 140.
In addition, in fig. 1, isolation between two networks is taken as an example for explanation, in actual implementation, multiple networks may be isolated, and the isolation manner between two networks in the multiple networks is the same as the isolation manner shown in fig. 1, and this embodiment is not described herein again.
In summary, in the message transmission system based on network isolation provided in this embodiment, by setting the first device, the second device, and the storage component, physical isolation between the first network to which the first device is accessed and the second network to which the second device is accessed can be achieved, and network intrusion or information leakage risk is avoided; meanwhile, the processing of the service can be realized.
In addition, the interactive process of the message is recorded through the storage component, and the message transmission process can be traced.
In addition, by recording the communication protocol information used in the message transmission process, the data transmission system does not need to configure the implementation mode of the communication protocol, and supports the transmission based on various communication protocols.
Fig. 3 is a flowchart of a message transmission method based on network isolation according to an embodiment of the present application, and this embodiment explains an example in which the method is applied to the message transmission system based on network isolation shown in fig. 1. The method at least comprises the following steps:
step 301, a first device receives a cross-network transmission message of a user terminal accessed to a first network to a second network, wherein the cross-network transmission message carries destination terminal information and message content.
Optionally, the cross-network transmission message further includes communication protocol information, where the communication protocol information is used to instruct the second device to send a communication protocol of the message content to the destination.
In one example, the cross-network transmission message is a cross-network access request or cross-network data; the cross-network access request is used for requesting to access a destination terminal in the second network; the cross-network data is data transmitted to a destination in the second network. The cross-network data may be response data to the cross-network access request, or message data, a log, or the like, and the present embodiment does not limit the data type of the cross-network data.
Optionally, after the first device monitors the cross-network transmission message, the cross-network transmission message may be configured to obtain configuration information, so that the second device can process the cross-network transmission message according to the configuration information. At this time, after receiving the cross-network transmission message of the user end accessing the first network to the second network, the first device also configures the cross-network transmission message to obtain configuration information; and sending the configuration information to the storage component for storage based on the first communication connection, so that the second equipment processes the cross-network transmission message according to the configuration information.
Optionally, the configuration information and the cross-network transmission message may be written into a message log of the first device together, and the first device writes the message log into the storage component for storage. Alternatively, the configuration information and the cross-network transmission message may also be written into the storage component in sequence, and the sequence in which the configuration information and the cross-network transmission message are written into the storage component is not limited in this embodiment.
Optionally, the cross-network transmission message is configured to obtain configuration information, which includes at least one of the following:
the first method comprises the following steps: and configuring an access port for transmitting the message across the network, wherein the access port comprises an access port of a destination end and an access port of the second equipment.
The access port of the destination is an actual access port for transmitting the message across the networks, and the actual access port cannot transmit the message because different networks are isolated.
The access port of the second device is the access port used for transmitting the message across the network, and the second device can use the access port to access the storage component, so that the message can be transmitted through the storage component.
Based on the above principle, configuring an access port for transmitting messages across networks includes: and modifying the actual access port of the cross-network transmission message into the access port of the second equipment.
And the second method comprises the following steps: and configuring the message type of the cross-network transmission message. Because the destination end of the cross-network transmission message may not need to receive all types of messages, the cross-network transmission message of a certain message type can be sent to the corresponding destination end by configuring the message type of the cross-network transmission message, but not all the cross-network transmission messages are sent to the destination end.
Optionally, the message types may be divided according to transmission modes, such as: the division is performed in a broadcast manner and a point-to-point manner, or in accordance with the type of program that generates the message. Such as: according to the division of the shared type program and the exclusive type program, the present embodiment does not limit the division manner of the message type. Different message types may be represented by different identities, such as: the identifier 1 indicates the message type 1, and the identifier 2 indicates the message type 2, which is not limited in the present embodiment.
And the third is that: and configuring the transmission direction of the cross-network transmission message. Some messages may only need to be transmitted in one direction, or some messages may need to be transmitted in both a send and receive reply. Therefore, the transmission direction of the message may also be pre-configured to transmit the message according to the desired message transmission direction.
Optionally, before the first device runs, the subscription relationship of the first device may also be configured. The subscription relationship of the first device is used to indicate programs subscribed to by the protocol pipe program in the first device, including other protocol pipe programs running in other devices and/or other programs different from the other protocol pipe programs. Optionally, the other programs may be independent application programs, or may also be a function module in a certain application program, and the present embodiment does not limit the types of the other programs.
The first device may obtain a message published by the subscribed program based on the subscription relationship. Optionally, after acquiring the message, the first device may further send the message to a designated node for storage.
Step 302, when the first communication connection between the first device and the preset storage component is connected, the first device sends the cross-network transmission message to the storage component for storage.
The cross-network transmission message is used for triggering the storage component to disconnect the first communication connection and establish a second communication connection with second equipment accessed to a second network; the second communication connection is used for the second device to read the cross-network transmission message stored in the storage component and send the message content to the destination terminal indicated by the destination terminal information through the second network.
Step 303, when the first communication connection between the first device and the first network is connected, the storage component receives and stores the cross-network transmission message to the second network, which is sent by the first device.
The cross-network transmission message carries destination terminal information and message content. Optionally, the cross-network transmission message further includes communication protocol information, where the communication protocol information is used to instruct the second device to send a communication protocol of the message content to the destination.
Step 304, the storage component disconnects the first communication connection and establishes a second communication connection with a second device accessing a second network; accordingly, the second device establishes a second communication connection with the preset storage component.
The second communication connection is established after the storage component receives and stores a cross-network transmission message sent by first equipment accessed to the first network, the cross-network transmission message is sent to the first equipment by a user end accessed to the first network and is stored to the storage component by the first equipment based on a first communication connection between the first equipment and the storage component, and the first communication connection is disconnected after the storage component stores the cross-network transmission message.
Optionally, after receiving the cross-network transmission message, the storage component disconnects the currently connected network (first network); and establishes a connection with the other network (second network) indicated by the cross-network transfer message. And the other networks indicated by the cross-network transmission message can be determined and obtained based on the access port in the configuration information of the cross-network transmission message. In other implementation manners, the storage component may also periodically establish a connection with a different network, so that a device in the connected network performs a process of reading and/or writing a message, and the application does not limit the manner in which the storage component establishes a communication connection with the different network.
Step 305, the second device reads the cross-network transmission message stored in the storage component based on the second communication connection; accordingly, the storage component transmits the cross-network transfer message to the second device based on the second communication connection.
And the cross-network transmission message is used for the second equipment to send message content to the destination terminal indicated by the destination terminal information through the second network.
The protocol pipeline program in the second device subscribes to the message log of the protocol pipeline program in the first device, and at this time, if the first device publishes the message in the storage component, the second device may read the message from the storage component.
And the subscription relationship between the protocol pipeline program in the second equipment and the protocol pipeline program in the first equipment is configured in advance. At this time, before step 305, the method further includes: and configuring a subscription relationship of the second device, wherein the subscription relationship comprises a subscription relationship between the second device and the first device. Accordingly, the second device reads the cross-network transmission message stored in the storage component based on the second communication connection, and the method comprises the following steps: reading the cross-network transmission message indicated by the subscription relationship in the storage component based on the second communication connection.
Optionally, the subscription relationship of the second device is used to indicate a program subscribed by the protocol pipe program in the second device, where the program includes the protocol pipe program running in the first device. Of course, the subscription relationship of the second device may also indicate other protocol pipe programs running in other devices to which the protocol pipe program in the second device is subscribed and/or other programs different from the other protocol pipe programs.
The second device may obtain a message published by the subscribed program based on the subscription relationship. Optionally, after the second device acquires the message, the message indicated by the subscription relationship may also be sent to the designated node for storage. In one example, the second device sends the cross-network transfer message indicated by the subscription relationship to the designated node store.
Optionally, if the first device configures the cross-network transmission message, the second device reads the configuration information of the cross-network transmission message stored in the storage component based on the second communication connection; analyzing the configuration information; and processing the cross-network transmission message according to the analyzed information.
Optionally, the configuration information is parsed, and the configuration information includes at least one of the following:
the first method comprises the following steps: and if the configuration information comprises an access port for configuring the cross-network transmission message, analyzing the access port of the destination end and the access port of the second equipment in the configuration information.
Correspondingly, the processing of the cross-network transmission message according to the analyzed information comprises the following steps: and modifying the actual access port of the cross-network transmission message into the access port of the destination end. At this time, both the second device and the destination access the second network, so that the second device can send the cross-network transmission message to the destination through the access port of the destination.
And the second method comprises the following steps: and if the configuration information comprises the message type of the cross-network transmission message, analyzing the message type in the configuration information.
Correspondingly, the processing of the cross-network transmission message according to the analyzed information comprises the following steps: and determining a destination end corresponding to the message type, and sending the cross-network transmission message with the message type to the corresponding destination end.
And the third is that: and if the configuration information comprises the transmission direction of the cross-network transmission message, analyzing the transmission direction in the configuration information.
Correspondingly, the processing of the cross-network transmission message according to the analyzed information comprises the following steps: when the transmission direction indication allows the transmission to the direction of the destination end, the second equipment continues to send the cross-network transmission message; and when the transmission direction indicates that the transmission to the destination end is not allowed, the second equipment stops sending the cross-network transmission message.
And step 306, the second device sends the message content to the destination terminal indicated by the destination terminal information through the second network.
Optionally, the cross-network transmission message further includes communication protocol information, where the communication protocol information is used to instruct the second device to send a communication protocol of the message content to the destination. At this time, the second device sends the message content to the destination terminal through the second network according to the communication protocol indicated by the read communication protocol information.
In summary, in the message transmission method based on network isolation provided in this embodiment, by setting the first device, the second device, and the storage component, which has the attribute of the single-pole multi-throw switch, physical isolation between the first network to which the first device is connected and the second network to which the second device is connected can be achieved, and network intrusion or information leakage risk is avoided; meanwhile, the processing of the service can be realized. In addition, the interactive process of the message is recorded through the storage component, and the message transmission process can be traced.
In addition, by recording the communication protocol information used in the message transmission process, the data transmission system does not need to configure the implementation mode of the communication protocol, and supports the transmission based on various communication protocols.
In addition, the second device can flexibly process the cross-network transmission message by configuring the cross-network transmission message.
Fig. 4 illustrates an example that the message transmission method based on network isolation provided in the present application is applied to a display and control platform, where networks in which each device operates in the display and control platform include 3 independent networks, which are respectively: a public security network 41, a video network 42, and other networks 43; the service boards 44 in the display and control platform relate to interaction among a plurality of independent networks, and direct communication connection is not allowed among the plurality of independent networks. The service boards include, among other things, a decoding board 441 and a streaming media board 442 running in the public security network 41, a streaming media board 443 running in the video network 42, and a streaming media board 444 running in the other network 43. The message is transmitted between the service boards 44 in the display and control platform across the network based on the network isolation system 45, wherein the isolation system comprises a protocol pipeline program 451 and a storage medium 452 configured in each independent network. In fig. 4, when the decoding board 441 in the public security network 41 pulls a video code stream to the stream media board 442 in the video network 42, the decoding board 441 is required to store a code stream request (cross-network transmission message) to the storage medium 452 through the corresponding protocol pipeline program 451, and the storage medium 452 sends the code stream request to the stream media board 442; then, the stream media board 442 responds to the stream request, stores the corresponding video stream to the storage medium 452 through the corresponding protocol pipeline program 451, the storage medium 452 sends the video stream to the decoding board 441, the storage medium 452 is not communicated with the protocol pipeline program 451 in the public security network 41 and the protocol pipeline program 451 in the video network 42 at the same time, and at this time, the isolation system 45 completes the service requirement under the condition of completely meeting the network isolation.
Fig. 5 is a block diagram of a message transmission apparatus based on network isolation according to an embodiment of the present application, and this embodiment illustrates an example in which the apparatus is applied to the first device 110 in the message transmission system based on network isolation shown in fig. 1. The device at least comprises the following modules: a receiving module 510 and a transmitting module 520.
A receiving module 510, configured to receive a cross-network transmission message from a user terminal accessing the first network to a second network, where the cross-network transmission message carries destination information and message content;
a sending module 520, configured to send the cross-network transmission message to a storage component for storage based on a first communication connection when the first device is connected to a preset storage component, so as to trigger the storage component to disconnect the first communication connection, and establish a second communication connection with a second device accessing the second network; the second communication connection is used for the second device to read the cross-network transmission message stored in the storage component and to send the message content to the destination indicated by the destination information through the second network.
For relevant details reference is made to the above-described embodiments.
Fig. 6 is a block diagram of a message transmission apparatus based on network isolation according to an embodiment of the present application, and this embodiment illustrates an example in which the apparatus is applied to the second device 130 in the message transmission system based on network isolation shown in fig. 1. The device at least comprises the following modules: a communication module 610, a reading module 620, and a sending module 630.
A communication module 610, configured to establish a second communication connection with a preset storage component, where the second communication connection is established after the storage component receives and stores a cross-network transmission message sent by a first device accessing a first network, the cross-network transmission message is sent from a user side accessing the first network to the first device, and is stored in the storage component by the first device based on a first communication connection with the storage component, and the first communication connection is disconnected after the storage component stores the cross-network transmission message; the cross-network transmission message carries destination terminal information and message content;
a reading module 620, configured to read the cross-network transmission message stored in the storage component based on the second communication connection;
a sending module 630, configured to send the message content to the destination indicated by the destination information through the second network.
For relevant details reference is made to the above-described embodiments.
Fig. 7 is a block diagram of a message transmission apparatus based on network isolation according to an embodiment of the present application, and this embodiment is described by taking an example in which the apparatus is applied to the storage component 120 in the message transmission system based on network isolation shown in fig. 1. The device at least comprises the following modules: a storage module 710, a communication module 720, and a transmission module 730.
A storage module 710, configured to receive and store a cross-network transmission message for a second network sent by a first device when a first communication connection between the first device and the first device accessing a first network is connected, where the cross-network transmission message carries destination information and message content;
a communication module 720, configured to disconnect the first communication connection and establish a second communication connection with a second device accessing the second network;
a sending module 730, configured to transmit the cross-network transmission message to the second device based on the second communication connection, so that the second device sends the message content to the destination indicated by the destination information through the second network.
For relevant details reference is made to the above-described embodiments.
It should be noted that: in the message transmission device based on network isolation provided in the foregoing embodiment, when performing message transmission based on network isolation, only the division of the functional modules is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the message transmission device based on network isolation is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the message transmission device based on network isolation provided by the above embodiment and the message transmission method based on network isolation belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment and is not described herein again.
Fig. 8 is a block diagram of a message transmission apparatus based on network isolation according to an embodiment of the present application, where the message transmission apparatus may be the first device 110, the second device 130, or the storage component 120 in the message transmission system based on network isolation shown in fig. 1. The apparatus comprises at least a processor 801 and a memory 802.
Processor 801 may include one or more processing cores, such as: 4 core processors, 8 core processors, etc. The processor 801 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 801 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 801 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 801 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.
Memory 802 may include one or more computer-readable storage media, which may be non-transitory. Memory 802 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 802 is used to store at least one instruction for execution by processor 801 to implement the network isolation based message transmission method provided by the method embodiments herein.
In some embodiments, the message transmission apparatus based on network isolation further optionally includes: a peripheral interface and at least one peripheral. The processor 801, memory 802 and peripheral interface may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface via a bus, signal line, or circuit board. Illustratively, peripheral devices include, but are not limited to: radio frequency circuit, touch display screen, audio circuit, power supply, etc.
Of course, the message transmission apparatus based on network isolation may also include fewer or more components, which is not limited in this embodiment.
Optionally, the present application further provides a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the message transmission method based on network isolation of the foregoing method embodiments.
Optionally, the present application further provides a computer product, which includes a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the message transmission method based on network isolation of the foregoing method embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not 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 (12)

1. A message transmission method based on network isolation is used in a first device, the first device accesses a first network, and the method comprises the following steps:
receiving a cross-network transmission message of a user terminal accessed to the first network to a second network, wherein the cross-network transmission message carries destination terminal information and message content;
when a first communication connection between the first device and a preset storage assembly is connected, sending the cross-network transmission message to the storage assembly for storage based on the first communication connection, so as to trigger the storage assembly to disconnect the first communication connection and establish a second communication connection with a second device accessed to the second network; the second communication connection is used for the second device to read the cross-network transmission message stored in the storage component and to send the message content to the destination indicated by the destination information through the second network.
2. The method of claim 1, wherein the cross-network transmission message further comprises communication protocol information, and wherein the communication protocol information is used to instruct the second device to send the communication protocol of the message content to the destination.
3. The method of claim 1, wherein after receiving the cross-network transmission message of the user end accessing the first network to the second network, the method further comprises:
configuring the cross-network transmission message to obtain configuration information;
and sending the configuration information to the storage component for storage based on the first communication connection, so that the second equipment processes the cross-network transmission message according to the configuration information.
4. The method of claim 3, wherein the configuring the cross-network transmission message to obtain configuration information comprises:
configuring an access port of the cross-network transmission message, wherein the access port comprises an access port of the destination terminal and an access port of the second device;
and/or the presence of a gas in the gas,
configuring the message type of the cross-network transmission message;
and/or the presence of a gas in the gas,
and configuring the transmission direction of the cross-network transmission message.
5. The method of claim 1, wherein the cross-network transmission message is a cross-network access request or cross-network data;
the cross-network access request is used for requesting to access the destination terminal in the second network;
the cross-network data is data transmitted to the destination in the second network.
6. A message transmission method based on network isolation is used in a second device, and the second device accesses a second network, and the method comprises the following steps:
establishing a second communication connection with a preset storage component, wherein the second communication connection is established after the storage component receives and stores a cross-network transmission message sent by first equipment accessed to a first network, the cross-network transmission message is sent to the first equipment by a user side accessed to the first network and is stored to the storage component by the first equipment based on a first communication connection between the first equipment and the storage component, and the first communication connection is disconnected after the storage component stores the cross-network transmission message; the cross-network transmission message carries destination terminal information and message content;
reading the cross-network transmission message stored in the storage component based on the second communication connection;
and sending the message content to the destination terminal indicated by the destination terminal information through the second network.
7. The method of claim 6, further comprising:
reading configuration information of the cross-network transmission message stored in the storage component based on the second communication connection;
analyzing the configuration information;
and processing the cross-network transmission message according to the analyzed information.
8. The method of claim 6,
the method further comprises the following steps:
configuring a subscription relationship of the second device, wherein the subscription relationship comprises a subscription relationship between the second device and the first device;
the reading the cross-network transmission message stored in the storage component based on the second communication connection comprises:
reading the cross-network transmission message indicated by the subscription relationship in the storage component based on the second communication connection.
9. A message transmission method based on network isolation, for use in a storage component, the method comprising:
receiving and storing a cross-network transmission message to a second network, which is sent by first equipment when the first communication connection between the first equipment and the first equipment accessed to a first network is communicated, wherein the cross-network transmission message carries destination terminal information and message content;
disconnecting the first communication connection and establishing a second communication connection with a second device accessing the second network;
and transmitting the cross-network transmission message to the second equipment based on the second communication connection so as to enable the second equipment to send the message content to a destination terminal indicated by the destination terminal information through the second network.
10. An apparatus for network isolation based message transmission, the apparatus comprising a processor and a memory; the memory stores a program that is loaded and executed by the processor to implement the network isolation-based message transmission method according to any one of claims 1 to 5; or, implementing the message transmission method based on network isolation according to any one of claims 6 to 8; or, implementing the message transmission method based on network isolation according to claim 9.
11. A computer-readable storage medium, characterized in that the storage medium has stored therein a program for implementing the network isolation-based message transmission method according to any one of claims 1 to 5 when executed by a processor; or, implementing the message transmission method based on network isolation according to any one of claims 6 to 8; or, implementing the message transmission method based on network isolation according to claim 9.
12. A message transmission system based on network isolation, the system comprising a first device, a second device and a storage component; the first equipment is accessed to a first network, and the second equipment is accessed to a second network;
the first device is configured to receive a cross-network transmission message of a user end accessing the first network to the second network, where the cross-network transmission message carries destination end information and message content; when a first communication connection between the first device and the storage component is connected, sending the cross-network transmission message to the storage component for storage based on the first communication connection;
the storage component is used for receiving and storing the cross-network transmission message of the second network sent by the first equipment when the first communication connection between the storage component and the first equipment is connected; disconnecting the first communication connection and establishing a second communication connection with the second device; transmitting the cross-network transfer message to the second device based on the second communication connection;
the second device is configured to, after establishing a second communication connection with the storage component, read the cross-network transmission message stored in the storage component based on the second communication connection; and sending the message content to the destination terminal indicated by the destination terminal information through the second network.
CN202011011496.4A 2020-09-23 2020-09-23 Message transmission method, device, storage medium and system based on network isolation Pending CN112187911A (en)

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Application publication date: 20210105