WO2020077867A1

WO2020077867A1 - Method and system for establishing communication link

Info

Publication number: WO2020077867A1
Application number: PCT/CN2018/124627
Authority: WO
Inventors: 陈天庆; 陈仕财; 陈亚殊
Original assignee: 平安科技（深圳）有限公司
Priority date: 2018-10-18
Filing date: 2018-12-28
Publication date: 2020-04-23
Also published as: CN109391618B; CN109391618A

Abstract

The present application is applicable to the technical field of internet, and provides a method and system for establishing a communication link. The method comprises the following steps: if a preset starting condition for dial testing is satisfied, a task dispatch server determines a dial testing project and obtains a terminal identification of a task execution terminal matching with the dial testing project; the task dispatch server obtains a communication secret key associated with the terminal device, generates a first transmission control protocol (TCP) message on the basis of the communication secret key, and sends the first TCP message to the task execution terminal; the task execution terminal determines, according to the communication secret key in the first TCP message, an associated secret key corresponding to the communication secret key, generates a second TCP message on the basis of the associated secret key, and sends the second TCP message to the task dispatch server; the task dispatch server performs verification on the associated secret key of the second TCP message, and, generates a dial testing command on the basis of the dial testing project if the verification is successful; and the task dispatch server establishes a communication link with the task execution terminal. The present application improves the efficiency of establishing a communication link, thus improving the dial testing efficiency.

Description

Method and system for establishing communication link

This application declares that it enjoys the priority of the Chinese patent application with the application number 201811216811.X and the name "a communication link establishment method and system" filed on October 18, 2018. The entire content of the Chinese patent application is for reference. The method is incorporated in this application.

Technical field

This application belongs to the field of Internet technology, and particularly relates to a method and system for establishing a communication link.

Background technique

Dialing test, as an important means to test the completeness of the communication network, how to quickly and effectively conduct the dialing test will directly affect the efficiency of the construction of the communication network. Existing dialing test technology, when the dialing test needs to be performed, the task scheduling server needs to deliver the dialing test task to each task execution terminal. In order to improve the security of the dialing test process, the task scheduling server needs to Check the validity of the task execution terminal. Therefore, before performing the dial test, the task scheduling server and the task execution terminal need to go through multiple processes such as three-way communication link handshake-network authentication-authentication result confirmation, etc., and the data link establishment time is longer In particular, when there are many dialing and testing tasks, the task scheduling server needs to frequently establish a call with the task execution terminal to carry out the test project content, thereby greatly reducing the efficiency of dialing and testing.

technical problem

In view of this, the embodiments of the present application provide a method and system for establishing a communication link to solve the existing dialing and testing technology. The data link takes a long time to establish, especially when there are many dialing and testing tasks, the task scheduling server Frequently establish a call with the task execution terminal to carry out the test project content, thereby greatly reducing the efficiency of dialing test.

Technical solution

A first aspect of an embodiment of the present application provides a method for establishing a communication link, including:

If the preset dial test start condition is satisfied, the task scheduling server determines the dial test item based on the dial test start condition, and obtains the terminal identification of the task execution terminal matching the dial test item;

The task scheduling server obtains a communication key associated with the terminal identifier, generates a first transmission control protocol TCP message based on the communication key, and sends the first TCP message to the task execution terminal;

The task execution terminal determines an association key corresponding to the communication key according to the communication key in the first TCP message, and generates a second TCP message based on the association key, and converts the Sending a second TCP message to the task scheduling server;

The task scheduling server verifies the associated key of the second TCP packet, and if the verification result is a successful verification, generates a dial test command based on the dial test item;

The task scheduling server sends a third TCP message carrying the dialing test instruction to the task execution terminal, and establishes a communication link with the task execution terminal.

Beneficial effect

In the embodiment of the present application, the communication key is added to the TCP message by the TCP three-way handshake between the task scheduling server and the task execution terminal to establish a communication link, so that the TCP message can not only be used to ensure that the task scheduling server and Whether the communication link between the task execution terminals is connected, and can also complete the operation of legality authentication, unifying the two processes of communication link establishment and network authentication, reducing the data interaction between the task scheduling server and the task execution terminal The number of times improves the efficiency of establishing a communication link, thereby improving the efficiency of dialing and testing.

BRIEF DESCRIPTION

FIG. 1 is an interaction flowchart of a method for establishing a communication link provided by the first embodiment of the present application;

2 is a specific implementation flowchart of a communication link establishment method S102 provided in a second embodiment of the present application;

3 is a flowchart of a specific implementation of a method S103 for establishing a communication link according to a third embodiment of the present application;

4 is a specific implementation flowchart of a method S102 for establishing a communication link according to a fourth embodiment of the present application;

5 is a flowchart of a specific implementation of a method S101 for establishing a communication link according to a fifth embodiment of the present application;

6 is a structural block diagram of a dialing and testing task scheduling system provided by an embodiment of the present application.

Embodiments of the invention

In the embodiment of the present application, the execution subject of the process is a dialing test task scheduling system, and the dialing test task scheduling system includes a task scheduling server and at least one task execution terminal. The task execution terminal includes but is not limited to: a computer, a smart phone, a tablet computer, and other devices capable of establishing a communication link with the task scheduling server, and executes the scheduling task delivered by the task scheduling server. FIG. 1 shows an interactive flowchart of the communication link establishment method provided in the first embodiment of the present application, which is described in detail as follows:

In S101, if a preset dial test start condition is satisfied, the task scheduling server determines a dial test item based on the dial test start condition, and acquires a terminal identifier of a task execution terminal that matches the dial test item.

In this embodiment, when the communication network is abnormal or needs to be updated, the administrator can test the communication network by dialing the test to determine the cause of the abnormality, and detect the communication network after the abnormality is repaired or the network is updated it's usable or not. In the process of performing the dial test, the task scheduling server is required to send the dial test task for the required test to the task execution terminal, and respond to the corresponding dial test task through the task execution terminal, and the test result corresponding to the task Feedback to the task scheduling server. That is, data interaction is required between the task scheduling server and the task execution terminal. In order to prevent the dial test data from being stolen and to determine whether the task execution terminal is a legal device, the task scheduling server needs to execute the task before performing the dial test The terminal performs network authentication operations, which can improve the security of the dialing test process. Based on this, in order to improve the efficiency of dialing and testing, the task scheduling server will combine the communication link connection process with the network authentication process, thereby reducing the number of data interactions between the task scheduling server and the task execution terminal.

In this embodiment, the task scheduling server may be connected to multiple task execution terminals, and each task execution terminal may be connected to multiple test machines, and each test machine may execute a dial test task issued by the task scheduling server, and based on each test The response condition of the machine generates the test result of the dial test terminal, and returns the test result to the task scheduling server through the established legal communication link. The same test machine can be connected to multiple task execution terminals, that is, respond to dialing test tasks sent by different task execution terminals in a time-division multiplexing manner. The task scheduling server can be a node server based on Golang, and periodically perform dialing test operations through preset dialing test triggering rules, thereby periodically testing the completeness of the communication network. When the task scheduling server detects the abnormal situation in the communication network by parsing the test result, it sends a network abnormal instruction to the upper computer server so that the upper computer server can handle the abnormal situation.

In this embodiment, since there are many test items in the dial test process, different dial test items may have different dial test start conditions. Therefore, when detecting that the preset dialing test start condition is satisfied at the current moment, the task scheduling server will identify the dialing test item corresponding to the dialing test start condition. It should be noted that different dialing test items can have the same dialing test start conditions. In this case, the task scheduling server needs to execute multiple dialing test items, and different dialing test items can be handed over to different task execution terminals. Perform concurrent processing. Of course, if different dial-up test items have a high degree of relevance and depend on the test results of other dial-up test items, the same task execution terminal can be referred to the multiple dial-up test items.

In this embodiment, different dialing test items can be processed by the corresponding task execution terminal, that is, the task scheduling server can store a correspondence between a dialing test item and the task execution terminal. After the task scheduling server obtains the dialing test item, The task execution terminal matched with the dialing test item may be acquired based on the corresponding relationship, so as to obtain the corresponding terminal identifier. It should be noted that the terminal identifier may be the physical address, network address, device number in the dialing task scheduling system of the task execution terminal, and other information that can be used to mark the identity of the device.

In S102, the task scheduling server obtains a communication key associated with the terminal identifier, generates a first transmission control protocol TCP message based on the communication key, and sends the first TCP message to the task Executive terminal.

In this embodiment, the task scheduling server will integrate the two processes of network authentication and communication link establishment. Therefore, the task scheduling server will encapsulate the communication key in the TCP message of the transmission control protocol, so as to perform three TCP handshake During the process, it is determined whether the task execution terminal is a legal device by identifying the communication key in the TCP message. Specifically, the terminal device determines the communication key associated with the terminal ID of the terminal that executes the task. The communication key may be a static key, that is, a pair of keys is agreed between the task execution terminal and the task scheduling server, which are respectively the communication key stored on the task scheduling server and the association stored on the task execution terminal The key, the two keys are related to each other, for example, each character in the communication key can be converted by a preset conversion relationship to obtain the associated key. It can be seen that, if the task execution terminal can return the associated key based on the communication key, the task scheduling server can be identified as a legitimate device. Because the communication key can be stolen during the communication process, in this legal verification process, instead of directly feeding back the communication key, it returns the associated key of the communication key, and the key conversion algorithm only stores the task The scheduling server and the task execution terminal do not transmit the key conversion algorithm during communication transmission, which can greatly reduce the probability of key leakage and improve the security of communication link establishment.

Optionally, in this embodiment, the key between the task scheduling server and the task execution terminal may be dynamically allocated. In this case, both the task scheduling server and the task execution terminal are connected to a host server. The host server will issue the communication key and the associated key within a preset time period. Among them, the communication key and the associated key will be sent to the task scheduling server and the task execution terminal in pairs, and the communication key and the associated key will be valid within this time period. When the next time period is reached, the upper server will resend A new pair of keys, the communication key and associated key sent in the previous cycle will be invalid. Therefore, the task scheduling server will obtain the communication key valid in the current time period and send it to the task execution terminal. When the task execution terminal receives the communication key, since the host server sends the dynamic key in pairs, Therefore, the associated key paired with it can be queried based on the communication key and sent to the task scheduling server. The task scheduling server also detects whether the fed back associated key matches the communication key, thereby completing the network authentication process.

In S103, the task execution terminal determines an association key corresponding to the communication key according to the communication key in the first TCP message, and generates a second TCP message based on the association key , Sending the second TCP packet to the task scheduling server.

In this embodiment, when the task execution terminal receives the first TCP message, it indicates that the task scheduling server and the task execution terminal need to establish a communication link and perform the dialing test process. In order to respond to the first TCP message, the Inform the task scheduling server that the link between the two is connected, and the task execution terminal will generate a second TCP message based on the first TCP message.

In this embodiment, the task execution terminal will parse the communication key contained in the first TCP message, and query the associated key matching the communication key, and then encapsulate the associated key in the generated TCP message. Preferably, the associated key may be stored in a reserved field of the TCP message, and the bit value of the option field may be adjusted, so that when the task scheduling server receives the second TCP message, it can determine that the reserved field carries valid data , Which is the associated key.

Optionally, the task execution terminal may be connected to multiple task scheduling servers, that is, the task execution terminal may store associated keys of different task scheduling servers. In this case, the task execution terminal will determine the server ID of the task scheduling server based on the source address in the first TCP message, so as to obtain the associated key matching the server ID and encapsulate it in the second TCP message .

In S104, the task scheduling server verifies the associated key of the second TCP message. If the verification result is that the verification is successful, a dial test test instruction is generated based on the dial test item.

In this embodiment, after receiving the second TCP message, the task scheduling server extracts the associated key contained in the second TCP message and identifies whether the associated key matches the communication key. Specifically, the task scheduling server may store a verification algorithm, and the task scheduling server may import both the communication key and the associated key into the verification algorithm, and identify whether the two match based on the verification value of the verification algorithm. Optionally, the verification algorithm may be a hash function, and the task scheduling server may import the communication key into the hash function to determine the hash value of the communication key, if the associated key is imported into the hash Within the function, if the output hash value is the same as the communication key hash value, the two match is recognized, that is, the verification is successful; otherwise, if the output hash value is different from the communication key hash value, then the recognition If the two do not match, the verification fails.

In this embodiment, after the task scheduling server recognizes that the verification is successful, it indicates that the task execution terminal is a legitimate device and can issue dial test instructions to it in response to the dial test item. Specifically, the task scheduling server will obtain the project identification of the dial test item, determine the test parameters based on the project identification, and generate the dial test command according to the test parameters.

In S105, the task scheduling server sends a third TCP message carrying the dialing test instruction to the task execution terminal, and establishes a communication link with the task execution terminal.

In this embodiment, the task scheduling server will add the generated dial test instruction to the third TCP message, and send the third TCP message to the task execution terminal. After sending the third TCP message, the task scheduling The server recognizes that the communication link is a legal communication link, and the task execution terminal is also a legal device. After the task execution terminal receives the third TCP message, the task execution terminal will also recognize the communication link as a legitimate communication link since it has completed three handshake operations, and extract the dial test from the third TCP message Instruction, and complete the test content corresponding to the dial test item.

As can be seen from the above, a method for establishing a communication link provided by an embodiment of the present application adds a communication key to a TCP message during a three-way TCP handshake between a task scheduling server and a task execution terminal to establish a communication link In this way, TCP packets can not only be used to ensure that the communication link between the task scheduling server and the task execution terminal is connected, but also complete the operation of legality authentication, unifying the two processes of communication link establishment and network authentication It reduces the number of data interactions between the task scheduling server and the task execution terminal, improves the efficiency of communication link establishment, and thus improves the efficiency of dial test.

FIG. 2 shows a specific implementation flowchart of a communication link establishment method S102 provided by the second embodiment of the present application. In this embodiment, the execution subject of the process is a task scheduling server. Referring to FIG. 2, compared with the embodiment described in FIG. 1, a communication link establishment method S102 provided in this embodiment includes: S1021 ~ S1024, specifically described as follows:

Further, the task scheduling server acquiring the communication key associated with the terminal identifier, and generating a first transmission control protocol TCP message based on the communication key includes:

In S1021, a random key generation algorithm corresponding to the terminal identifier is queried, and a confusion encryption key is obtained through the random key generation algorithm.

In this embodiment, the random key generation algorithm corresponding to different task execution terminals may be different. Therefore, the task scheduling server may acquire the random key generation algorithm corresponding to the task execution terminal based on the terminal identifier. Specifically, the random key algorithm of each task execution terminal may be stored at the host computer server, and the host computer server may update the random key generation algorithm of each task execution terminal at a preset update period. The task scheduling server can communicate with the host computer server, and obtain the random key generation algorithm corresponding to the terminal identifier through the host computer server. It should be noted that the task execution terminal side may be configured with a key analysis algorithm, and the key analysis algorithm and the random key generation algorithm are two algorithms corresponding to each other, that is, the random key generation algorithm is based on a preset key The rules randomly generate obfuscated encryption keys, and the key analysis algorithm can identify whether the obfuscated encryption keys meet the key rules. If the obfuscated encryption keys meet the key rules, the obfuscated encryption keys are recognized as legal. Key; otherwise, the key is recognized as an illegal key, which does not match the task execution terminal.

In this embodiment, after determining the random key generation algorithm matching the task execution terminal, the task scheduling server may run the random key generation algorithm, and use the random key generation algorithm to generate the communication link used in this process Obfuscated encryption key. It should be noted that the characters contained in the obfuscated encryption key are random, and the key length is also random. However, the obfuscation encryption key is set with a minimum key length and a maximum key length, that is, the key length of the obfuscation encryption key has a fixed range.

In S1022, the number of key divisions is determined according to the character length of the terminal identification, and the obfuscated encryption key is divided into multiple subkeys based on the division times.

In this embodiment, the task scheduling server needs to perform obfuscation and encryption processing on the terminal identification, so that the obfuscated and encrypted terminal identification is sent as a communication key to the task execution terminal. Since the task execution terminal stores its own terminal identification, that is, after the terminal identification is processed through obfuscation encryption, if it is sent to a legitimate task execution terminal, the task execution terminal can still resolve the confusion in the communication key by using the locally recorded terminal identification Encryption key. For an illegal task execution terminal, because the terminal ID recorded locally is inconsistent with the terminal ID of the legal device, the obfuscated encryption key cannot be resolved through the communication key, and the corresponding associated key cannot be generated. Based on the above reasons, the difficulty of cracking the communication key can be increased, thereby improving the security and confidentiality of establishing the communication link.

In this embodiment, the task scheduling server recognizes the character length of the terminal identifier of the target task execution terminal, and determines the number of key divisions based on the size of the character length. Specifically, if the length of the terminal logo is longer, in order to better hide the native terminal logo, the corresponding number of key splits is greater, so that more obfuscation insertion points can be configured; and the shorter the length of the terminal logo, The smaller the corresponding key division times. After determining the number of key divisions, the task scheduling server can divide the generated obfuscation encryption key into equal amounts to generate multiple subkeys.

Optionally, in this embodiment, the terminal identifier may be composed of the physical address and network address of the task execution terminal. After querying the physical address of the task execution terminal, the task scheduling server can add the network address to the physical address at the head or tail of the physical address, or even a preset insertion point, and add the physical address of the network address Identify the terminal ID of the task execution terminal.

In S1023, a plurality of the subkeys are inserted into preset insertion positions in the terminal identification, and the terminal identification after inserting the subkey is identified as the communication key.

In this embodiment, the task scheduling server may determine the number of insertion points according to the number of key divisions, and identify multiple insertion positions from the terminal identification according to the arrangement rules of the insertion points, and then the task scheduling server may divide each The subkey is added to the terminal identification according to each insertion position, and the terminal identification after inserting the subkey is recognized as the communication key. Preferably, the task scheduling server may determine the corresponding insertion position based on the division order of each subkey, that is, the division order of the subkey matches the sequence number of the insertion position.

In S1024, the task scheduling server generates a first transmission control protocol TCP message based on the communication key.

In this embodiment, the task scheduling server adds the generated communication key to the native first TCP message, so that the task execution terminal can extract the communication key from the first TCP message and generate the corresponding Associated key.

In the embodiment of the present application, the obfuscation encryption key is generated by a random algorithm, and the obfuscation encryption key is divided and inserted into the terminal identification to generate the communication key, which can increase the difficulty of cracking the communication key, thereby improving the establishment of the communication link Security.

FIG. 3 shows a specific implementation flowchart of a communication link establishment method S103 provided in the third embodiment of the present application. In this embodiment, the execution subject of the process is a task execution terminal. Referring to FIG. 3, relative to the embodiment described in FIG. 2, a communication link establishment method S103 provided in this embodiment includes: S1031 ~ S1032, specific The details are as follows:

Further, the task execution terminal determining the associated key corresponding to the communication key according to the communication key in the first TCP message includes:

In S1031, each subkey is extracted from the communication key based on the terminal identification and the insertion position, and the obfuscated encryption key is restored based on the insertion order of the subkeys.

In this embodiment, after receiving the first TCP message, the task execution terminal may extract the communication key from the TCP message. After the communication key is determined, the task execution terminal obtains the local terminal identification, and obtains the sub-key that is confusedly inserted from the communication key by comparing the communication key and the terminal identification. It should be noted that, since the key scheduling algorithm and the key insertion algorithm are pre-agreed between the task scheduling server and the legal task execution terminal, the task execution terminal can determine the number of key splits based on the local terminal identification and based on the secret The number of key divisions determines the insertion position of each subkey. After receiving the communication key, the insertion position can be marked and extracted based on the local terminal identification.

In this embodiment, the task execution terminal may determine the arrangement order of the subkeys in the obfuscated encryption key according to the insertion order of the respective subkeys in the communication key, and perform each subkey based on the arrangement order Combine and restore the obfuscated encryption key before splitting.

Optionally, after recovering the obfuscated encryption key, the task execution terminal may determine whether the obfuscated encryption key is a legal key through a preset key recognition algorithm, and if so, perform the relevant operations of S1032; otherwise, if the If the key is an illegal key or the obfuscated encryption key cannot be parsed by the key identification algorithm, the first TCP message is identified as an illegal message, and no communication connection is established with the task scheduling server.

In S1032, the obfuscated encryption key is imported into an associated key generation algorithm to generate an associated key corresponding to the obfuscated encryption key.

In this embodiment, after acquiring the obfuscated encryption key, the task execution terminal outputs the associated key corresponding to the obfuscated encryption key through the associated key generation algorithm. Specifically, the associated key generation algorithm may be a hash function. After the obfuscated encryption key is imported into the hash function, the hash value corresponding to the obfuscated encryption key may be determined, and the hash value may be identified as associated Key. Correspondingly, the task scheduling server is also configured with a corresponding associated key generation algorithm. The task scheduling server can also determine the associated key corresponding to the obfuscated encryption key through the associated key generation algorithm, and upon receiving the feedback from the task execution terminal After the second TCP message, identify whether the locally generated association key is consistent with the association key carried in the second TCP message, thereby identifying whether the verification is successful.

In the embodiment of the present application, the obfuscated encryption key is restored through the local terminal identification, and the corresponding associated key is generated, which can improve the security of the communication link establishment.

FIG. 4 shows a specific implementation flowchart of a communication link establishment method S102 provided by the fourth embodiment of the present application. In this embodiment, the execution subject of the process is a task scheduling server. Referring to FIG. 4, compared with the embodiments described in FIGS. 1-3, a communication link establishment method provided in this embodiment S102 includes: S1025 ~ S1027, detailed as follows:

In S1025, the network address of the task execution terminal is obtained, and a native TCP message is generated based on the network address.

In this embodiment, the task scheduling server will obtain the network address corresponding to the terminal ID based on the terminal ID of the task execution terminal, and detect whether each of the current communication interfaces has established a communication link with the communication address. If it is, the dial test instruction is sent directly through the established communication link; otherwise, if each communication interface has not established a communication link with the network address, a native TCP message is generated according to the network address and the local network address.

In this embodiment, the value of the option field in the native TCP packet is the default value, and the reserved field is also filled with invalid character strings.

In S1026, the option field in the native TCP message is set to a preset bit value.

In this embodiment, after generating a native TCP message, the task scheduling server needs to encapsulate the communication key in the TCP message. In order for the communication peer to recognize that the TCP message carries the communication key, the task The scheduling server adjusts the bit value of the option field and sets the option field to a preset bit value. For example, the bit value may be "XX". When the bit value of the communication peer identification option field is a non-default value and is "XX", it may be determined that the TCP packet carries the communication key. It should be noted that the preset bit value is a bit value predetermined by the task scheduling server and the task execution terminal.

In S1027, the communication key is added to a reserved field in the native TCP message, and the native TCP message after adding the communication key and setting a preset bit value is identified as the first TCP Message.

In this embodiment, the task scheduling server adds the generated communication key to the reserved field of the native TCP packet. The reserved field and the above-mentioned option field are located in the header of the TCP packet, and the TCP report is not changed. The content of the text. At this point, the task scheduling server has added the communication key to the TCP message, so it can identify the native TCP message with the communication key added and the option field modified as the first TCP message.

In the embodiment of the present application, by modifying the header of the native TCP message, the communication key can be added to the TCP message without additional communication export, reducing the amount of data in the TCP message and improving the transmission efficiency .

FIG. 5 shows a specific implementation flowchart of a communication link establishment method provided in a fifth embodiment of the present application. In this embodiment, the execution subject of the process is a task scheduling server. Referring to FIG. 5, relative to the embodiment described in FIGS. 1-3, a communication link establishment method provided in this embodiment S101 includes: S1011 ~ S1012, detailed as follows:

Further, the task scheduling server determines a dial test item based on the dial test start condition, and obtains a terminal identifier of a task execution terminal matching the dial test item, including:

In S1011, a list of operation states of the task execution terminal is obtained, and a task execution terminal whose operation state is idle is selected as a candidate execution terminal.

In this embodiment, when the task scheduling server determines that it needs to perform the dial test, it will obtain a running status list, which records the running status of each task execution terminal in the dial testing and scheduling system. The running status includes occupancy State, idle state and fault state. When the status of the task execution terminal changes, it will be updated to the running status list synchronously. Therefore, the task scheduling server can determine the current running state of each task execution terminal according to the running state list.

In this embodiment, the task scheduling terminal will detect whether there is a task execution terminal whose operation status is idle in the operation status list, and if so, identify the task execution terminal as a candidate central terminal.

In S1012, query the executable item information of each of the candidate execution terminals, and identify any candidate execution terminal that contains the dialing test item in the executable item information as a task execution that matches the dialing test item terminal.

In this embodiment, after detecting that there is a task execution terminal in an idle state, the task scheduling server will obtain the executable item information of each candidate execution terminal, and the executable item information is used to indicate that the task execution terminal can respond to the dial test Project, based on this, the task scheduling server will query whether the executable project information contains the identified dial test item, if it exists, it means that the candidate execution terminal has the corresponding ability to complete the dial test item, therefore, identify the candidate execution terminal The task execution terminal criticized for the dialing test project.

In the embodiment of the present application, by acquiring the running status and executable item information of each task execution terminal, the task execution terminal criticized and dialed for the test item is selected and the response efficiency of the dial test item is improved.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

FIG. 6 shows a structural block diagram of a dialing and testing task scheduling system provided by an embodiment of the present application. Each unit included in the terminal device is used to execute each step in the embodiment corresponding to FIG. 1. For details, please refer to the related descriptions in the embodiments corresponding to FIG. 1 and FIG. 1. For ease of explanation, only parts related to this embodiment are shown.

Referring to FIG. 6, the dialing test task scheduling system includes: a task scheduling server 61 and at least one task execution terminal 62;

The task scheduling server 61 is configured to determine a dial test item based on the dial test start condition if a preset dial test start condition is satisfied, and obtain a terminal identifier of the task execution terminal 62 that matches the dial test item;

The task scheduling server 61 is configured to obtain a communication key associated with the terminal identifier, generate a first transmission control protocol TCP message based on the communication key, and send the first TCP message to the task Executive terminal 62;

The task execution terminal 62 is configured to determine an association key corresponding to the communication key according to the communication key in the first TCP message, and generate a second TCP message based on the association key , Sending the second TCP message to the task scheduling server 61;

The task scheduling server 61 is configured to verify the associated key of the second TCP packet, and if the verification result is successful, generate a dial test command based on the dial test item;

The task scheduling server 61 is configured to send a third TCP message carrying the dialing test instruction to the task execution terminal 62, and establish a communication link with the task execution terminal 62.

Optionally, the task scheduling server 61 is configured to obtain a communication key associated with the terminal identification, and generate a first transmission control protocol TCP packet based on the communication key, including:

The task scheduling server 61 is configured to query a random key generation algorithm corresponding to the terminal identifier, and obtain a confusion encryption key through the random key generation algorithm;

The task scheduling server 61 is configured to determine the number of key divisions according to the character length of the terminal identification, and divide the obfuscation encryption key into multiple subkeys based on the division times;

The task scheduling server 61 is configured to insert a plurality of the sub-keys into a preset insertion position in the terminal identification, and identify the terminal identification after inserting the sub-key as the communication key;

The task scheduling server 61 is configured to generate a first transmission control protocol TCP message based on the communication key.

Optionally, the task execution terminal 62 is configured to determine the associated key corresponding to the communication key according to the communication key in the first TCP message, including:

The task execution terminal 62 is configured to extract each of the subkeys from the communication key based on the terminal identification and the insertion position, and restore the confusion based on the insertion order of the subkeys Encryption key

The task execution terminal 62 is configured to import the obfuscated encryption key into an associated key generation algorithm, and generate an associated key corresponding to the obfuscated encryption key.

The task scheduling server 61 is configured to obtain a network address of the task execution terminal 62, and generate a native TCP message based on the network address;

The task scheduling server 61 is configured to set the option field in the native TCP message to a preset bit value;

The task scheduling server 61 is configured to add the communication key to a reserved field in the native TCP message, and add the communication key and the native TCP message after setting a preset bit value Recognized as the first TCP message.

Optionally, the task scheduling server 61 is configured to determine a dial test item based on the dial test start condition and obtain a terminal identifier of the task execution terminal 62 that matches the dial test item, including:

The task scheduling server 61 is configured to obtain a list of operation states of the task execution terminal 62, and select a task execution terminal whose operation state is idle as a candidate execution terminal;

The task scheduling server 61 is configured to query the executable item information of each candidate execution terminal, and identify any candidate execution terminal that includes the dialing test item in the executable item information as being associated with the dialing test Task execution terminal for project matching.

Therefore, the dialing test task scheduling system provided by the embodiment of the present application can also add the communication key to the TCP message by performing a three-way TCP handshake between the task scheduling server and the task execution terminal to establish a communication link. The message can not only be used to ensure that the communication link between the task scheduling server and the task execution terminal is connected, but also complete the operation of legality authentication, unify the two processes of communication link establishment and network authentication, reducing tasks The number of data interactions between the dispatch server and the task execution terminal improves the efficiency of communication link establishment, thereby increasing the efficiency of dial test.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The above integrated unit can be implemented in the form of hardware or software function unit.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still implement the foregoing The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application. Within the scope of protection of this application.

Claims

A method for establishing a communication link is applied to a dialing and testing task scheduling system, which is characterized in that the method for establishing a communication link includes:

If the preset dial test start condition is satisfied, the task scheduling server determines the dial test item based on the dial test start condition, and obtains the terminal identification of the task execution terminal matching the dial test item;

The task scheduling server obtains a communication key associated with the terminal identifier, generates a first transmission control protocol TCP message based on the communication key, and sends the first TCP message to the task execution terminal;

The task execution terminal determines an association key corresponding to the communication key according to the communication key in the first TCP message, and generates a second TCP message based on the association key, and converts the Sending a second TCP message to the task scheduling server;

The task scheduling server verifies the associated key of the second TCP packet, and if the verification result is a successful verification, generates a dial test command based on the dial test item;

The task scheduling server sends a third TCP message carrying the dialing test instruction to the task execution terminal, and establishes a communication link with the task execution terminal.
The establishment method according to claim 1, wherein the task scheduling server obtains a communication key associated with the terminal identifier, and generates a first transmission control protocol TCP message based on the communication key, including:

The task scheduling server queries the random key generation algorithm corresponding to the terminal identifier, and obtains the confusion encryption key through the random key generation algorithm;

The task scheduling server determines the number of key divisions according to the character length of the terminal identification, and divides the obfuscated encryption key into multiple subkeys based on the division times;

The task scheduling server inserts a plurality of the sub-keys into a preset insertion position in the terminal identifier, and recognizes the terminal identifier after inserting the sub-key as the communication key;

The task scheduling server generates a first transmission control protocol TCP message based on the communication key.
The establishment method according to claim 2, wherein the task execution terminal determines the associated key corresponding to the communication key according to the communication key in the first TCP message, including:

The task execution terminal extracts each subkey from the communication key based on the terminal identification and the insertion position, and restores the obfuscated encryption key based on the insertion order of the subkeys;

The task execution terminal imports the obfuscated encryption key into an associated key generation algorithm to generate an associated key corresponding to the obfuscated encryption key.
The establishment method according to any one of claims 1 to 3, wherein the task scheduling server obtains a communication key associated with the terminal identifier, and generates a first transmission control protocol TCP packet based on the communication key ,include:

The task scheduling server obtains the network address of the task execution terminal, and generates a native TCP message based on the network address;

The task scheduling server sets the option field in the native TCP message to a preset bit value;

The task scheduling server adds the communication key to a reserved field in the native TCP message, and identifies the native TCP message after adding the communication key and setting a preset bit value as the first TCP message.
The establishment method according to any one of claims 1 to 3, wherein the task scheduling server determines a dial test item based on the dial test start condition and obtains a task execution terminal matching the dial test item Terminal identification, including:

The task scheduling server obtains a list of operation states of the task execution terminal, and selects the task execution terminal whose operation state is idle as a candidate execution terminal;

The task scheduling server queries the executable item information of each candidate execution terminal, and identifies any candidate execution terminal containing the dialing test item in the executable item information as a task matching the dialing test item Executive terminal.
A dialing test task scheduling system, characterized in that the dialing test task scheduling system includes: a task scheduling server and at least one task execution terminal;

The task scheduling server is configured to determine a dial test item based on the dial test start condition if a preset dial test start condition is satisfied, and obtain a terminal identification of a task execution terminal matching the dial test item;

The task scheduling server is configured to obtain a communication key associated with the terminal identifier, generate a first transmission control protocol TCP message based on the communication key, and send the first TCP message to the task for execution terminal;

The task execution terminal is configured to determine an association key corresponding to the communication key according to the communication key in the first TCP message, and generate a second TCP message based on the association key, Sending the second TCP message to the task scheduling server;

The task scheduling server is configured to verify the associated key of the second TCP message, and if the verification result is successful, generate a dial test command based on the dial test item;

The task scheduling server is configured to send a third TCP message carrying the dialing test instruction to the task execution terminal, and establish a communication link with the task execution terminal.
The dialing and testing task scheduling system according to claim 6, wherein the task scheduling server is configured to obtain a communication key associated with the terminal identification, and generate a first transmission control protocol TCP report based on the communication key Articles, including:

The task scheduling server is used to query a random key generation algorithm corresponding to the terminal identifier, and obtain a confusion encryption key through the random key generation algorithm;

The task scheduling server is configured to determine the number of key divisions based on the character length of the terminal identification, and divide the obfuscated encryption key into multiple subkeys based on the division times;

The task scheduling server is configured to insert a plurality of the sub-keys into a preset insertion position in the terminal identification, and recognize the terminal identification after inserting the sub-key as the communication key.
The dialing and testing task scheduling system according to claim 7, wherein the task execution terminal is configured to determine an association corresponding to the communication key according to the communication key in the first TCP message Keys, including:

The task execution terminal is configured to extract each of the subkeys from the communication key based on the terminal identification and the insertion position, and restore the obfuscated encryption based on the insertion order of the subkeys Key

The task execution terminal is configured to import the obfuscated encryption key into an associated key generation algorithm, and generate an associated key corresponding to the obfuscated encryption key.
The dialing and testing task scheduling system according to any one of claims 6-8, wherein the task scheduling server is configured to obtain a communication key associated with the terminal identification, and generate a first based on the communication key Transmission control protocol TCP packets, including:

The task scheduling server is used to obtain the network address of the task execution terminal and generate a native TCP message based on the network address;

The task scheduling server is configured to set the option field in the native TCP message to a preset bit value;

The task scheduling server is configured to add the communication key to a reserved field in the native TCP message, and identify the native TCP message after adding the communication key and setting a preset bit value It is the first TCP message.
The dialing test task scheduling system according to any one of claims 6-8, wherein the task scheduling server is configured to determine a dialing test item based on the dialing test start condition and obtain the dialing test item The terminal identification of the matched task execution terminal includes:

The task scheduling server is used to obtain a list of running states of task execution terminals, and select a task execution terminal whose running state is idle as a candidate execution terminal;

The task scheduling server is configured to query the executable item information of each candidate execution terminal, and identify any candidate execution terminal that includes the dialing test item in the executable item information as the dialing test item Matching task execution terminal.
A dialing test task scheduling system, characterized in that the dialing test task scheduling system includes: a task scheduling server and at least one task execution terminal; the task scheduling server includes a memory, a processor, and is stored in the memory and can Computer-readable instructions running on the processor, and the processor of the task scheduling server implements the following steps when executing the computer-readable instructions:

The task scheduling server is configured to determine a dial test item based on the dial test start condition if a preset dial test start condition is satisfied, and obtain a terminal identification of a task execution terminal matching the dial test item;

The task scheduling server is configured to obtain a communication key associated with the terminal identifier, generate a first transmission control protocol TCP message based on the communication key, and send the first TCP message to the task for execution terminal;

The task scheduling server is configured to verify the associated key of the second TCP message, and if the verification result is successful, generate a dial test command based on the dial test item;

The task scheduling server is configured to send a third TCP message carrying the dialing test instruction to the task execution terminal, and establish a communication link with the task execution terminal;

The task execution terminal includes a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor. The processor of the task execution terminal is implemented as follows when executing the computer-readable instructions step:

The task execution terminal is configured to determine an association key corresponding to the communication key according to the communication key in the first TCP message, and generate a second TCP message based on the association key, Sending the second TCP message to the task scheduling server.
The dialing and testing task scheduling system according to claim 11, wherein the task scheduling server is configured to obtain a communication key associated with the terminal identifier, and generate a first transmission control protocol TCP report based on the communication key Articles, including:

The task scheduling server is used to query a random key generation algorithm corresponding to the terminal identifier, and obtain a confusion encryption key through the random key generation algorithm;

The task scheduling server is configured to determine the number of key divisions based on the character length of the terminal identification, and divide the obfuscated encryption key into multiple subkeys based on the division times;

The task scheduling server is configured to insert a plurality of the sub-keys into a preset insertion position in the terminal identification, and identify the terminal identification after inserting the sub-key as the communication key;

The task scheduling server is configured to generate a first transmission control protocol TCP message based on the communication key.
The dialing and testing task scheduling system according to claim 12, wherein the task execution terminal is configured to determine an association corresponding to the communication key according to the communication key in the first TCP message Keys, including:

The task execution terminal is configured to extract each of the subkeys from the communication key based on the terminal identification and the insertion position, and restore the obfuscated encryption based on the insertion order of the subkeys Key

The task execution terminal is configured to import the obfuscated encryption key into an associated key generation algorithm, and generate an associated key corresponding to the obfuscated encryption key.
The dialing test task scheduling system according to claims 11-13, wherein the task scheduling server is configured to obtain a communication key associated with the terminal identification, and generate a first transmission control protocol based on the communication key TCP messages, including:

The task scheduling server is used to obtain the network address of the task execution terminal and generate a native TCP message based on the network address;

The task scheduling server is configured to set the option field in the native TCP message to a preset bit value;

The task scheduling server is configured to add the communication key to a reserved field in the native TCP message, and identify the native TCP message after adding the communication key and setting a preset bit value It is the first TCP message.
The dialing test task scheduling system according to any one of claims 11-13, wherein the task scheduling server is configured to determine a dialing test item based on the dialing test start condition and obtain the dialing test item The terminal identification of the matched task execution terminal includes:

The task scheduling server is used to obtain a list of running states of task execution terminals, and select a task execution terminal whose running state is idle as a candidate execution terminal;

The task scheduling server is configured to query the executable item information of each candidate execution terminal, and identify any candidate execution terminal that includes the dialing test item in the executable item information as the dialing test item Matching task execution terminal.
A computer non-volatile readable storage medium, the computer non-volatile readable storage medium stores computer readable instructions, characterized in that, when the computer readable instructions are executed by a processor, the following steps are implemented:

If the preset dial test start condition is satisfied, the task scheduling server determines the dial test item based on the dial test start condition, and obtains the terminal identification of the task execution terminal matching the dial test item;

The task scheduling server obtains a communication key associated with the terminal identifier, generates a first transmission control protocol TCP message based on the communication key, and sends the first TCP message to the task execution terminal;

The task execution terminal determines an association key corresponding to the communication key according to the communication key in the first TCP message, and generates a second TCP message based on the association key, and converts the Sending a second TCP message to the task scheduling server;

The task scheduling server verifies the associated key of the second TCP packet, and if the verification result is a successful verification, generates a dial test command based on the dial test item;

The task scheduling server sends a third TCP message carrying the dialing test instruction to the task execution terminal, and establishes a communication link with the task execution terminal.
The computer non-volatile readable storage medium according to claim 16, wherein the task scheduling server obtains a communication key associated with the terminal identification, and generates a first transmission control protocol TCP based on the communication key Messages, including:

The task scheduling server queries the random key generation algorithm corresponding to the terminal identifier, and obtains the confusion encryption key through the random key generation algorithm;

The task scheduling server determines the number of key divisions according to the character length of the terminal identification, and divides the obfuscated encryption key into multiple subkeys based on the division times;

The task scheduling server inserts a plurality of the sub-keys into a preset insertion position in the terminal identifier, and recognizes the terminal identifier after inserting the sub-key as the communication key;

The task scheduling server generates a first transmission control protocol TCP message based on the communication key.
The non-volatile computer-readable storage medium according to claim 17, wherein the task execution terminal determines the corresponding communication key according to the communication key in the first TCP message Associated keys, including:

The task execution terminal extracts each subkey from the communication key based on the terminal identification and the insertion position, and restores the obfuscated encryption key based on the insertion order of the subkeys;

The task execution terminal imports the obfuscated encryption key into an associated key generation algorithm to generate an associated key corresponding to the obfuscated encryption key.
The computer non-volatile storage medium according to claims 16-18, wherein the task scheduling server obtains a communication key associated with the terminal identification, and generates a first transmission control based on the communication key Protocol TCP packets, including:

The task scheduling server obtains the network address of the task execution terminal, and generates a native TCP message based on the network address;

The task scheduling server sets the option field in the native TCP message to a preset bit value;

The task scheduling server adds the communication key to a reserved field in the native TCP message, and identifies the native TCP message after adding the communication key and setting a preset bit value as the first TCP message.
The computer non-volatile storage medium according to any one of claims 16 to 18, wherein the task scheduling server determines a dial test item based on the dial test start condition and obtains the dial test The terminal identification of the task execution terminal matched by the project includes:

The task scheduling server obtains a list of operation states of the task execution terminal, and selects the task execution terminal whose operation state is idle as a candidate execution terminal;

The task scheduling server queries the executable item information of each candidate execution terminal, and identifies any candidate execution terminal containing the dialing test item in the executable item information as a task matching the dialing test item Executive terminal.