CN110535743B - Data packet processing method and device, storage medium and electronic device - Google Patents
Data packet processing method and device, storage medium and electronic device Download PDFInfo
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- CN110535743B CN110535743B CN201910765607.1A CN201910765607A CN110535743B CN 110535743 B CN110535743 B CN 110535743B CN 201910765607 A CN201910765607 A CN 201910765607A CN 110535743 B CN110535743 B CN 110535743B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Abstract
The invention provides a data packet processing method, a data packet processing device, a storage medium and an electronic device, wherein the method comprises the following steps: the intercepting module acquires an original data packet sent by an application program sending end, encapsulates the original data packet into a target data packet, sends the target data packet to the forwarding module, the forwarding module forwards the target data packet to the restoring module, and the restoring module restores the target data packet into the original data packet and sends the original data packet to the application program receiving end. The invention can solve the problem that the normal arrival of the data packet is difficult to ensure, and achieves the technical effect of enabling the data packet to arrive normally.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for processing a data packet, a storage medium, and an electronic apparatus.
Background
With the further development of information technology, users communicate over long distances more and more frequently. When a user performs long-distance communication, a data packet may pass through many data links from transmission to reception, and due to the complexity of the network, a certain link may fail to transmit data normally, which may result in that the data packet cannot be transmitted normally.
In the prior art, the above problem is solved by using an SDK (software development kit) scheme, where an interface for sending and receiving data is provided in the SDK, and an application program is used to directly call a corresponding interface to send and receive a data packet, but the above scheme has the problems that the dependency of the application program on the SDK is too strong, and the application program also needs to be recompiled and issued when the SDK is changed. Moreover, when a problem occurs in the application development process, it cannot be determined whether the application itself has a problem or the SDK has a problem, and it is difficult to ensure that the data packet is normally transmitted.
Aiming at the problems that the normal arrival of a data packet is difficult to ensure in the related technology and the like, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a data packet processing method, a data packet processing device, a storage medium and an electronic device, and aims to at least solve the problems that the normal arrival of a data packet is difficult to ensure in the related art.
According to an embodiment of the present invention, there is provided a method for processing a data packet, including: the method comprises the steps that an interception module obtains an original data packet sent by an application sending end, the original data packet is packaged into a target data packet, and the target data packet is sent to a forwarding module, wherein the signature of a function interface of the interception module is the same as that of a function interface of a standard network interface, and the priority of a function symbol table of the interception module is configured to be higher than that of the function symbol table of the standard network interface; forwarding, by the forwarding module, the target packet to a restoration module; and the restoration module restores the target data packet into the original data packet and sends the original data packet to an application program receiving end.
According to another embodiment of the present invention, there is provided a packet processing apparatus including: the system comprises an interception module, a forwarding module and a processing module, wherein the interception module is used for acquiring an original data packet sent by an application sending end, packaging the original data packet into a target data packet and sending the target data packet to the forwarding module, the signature of a function interface of the interception module is the same as that of a function interface of a standard network interface, and the priority of a function symbol table of the interception module is configured to be higher than that of the function symbol table of the standard network interface; the forwarding module is used for forwarding the target data packet to the restoring module; and the restoring module is used for restoring the target data packet into the original data packet and sending the original data packet to an application program receiving end.
According to yet another embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of the above-mentioned method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in the above method embodiments.
According to the invention, the interception module acquires the original data packet sent by the sending end of the application program, encapsulates the original data packet into the target data packet, sends the target data packet to the forwarding module, the forwarding module forwards the target data packet to the reduction module, and the reduction module reduces the target data packet into the original data packet and sends the original data packet to the receiving end of the application program. Therefore, the problem that the normal arrival of the data packet is difficult to ensure can be solved, and the technical effect of enabling the data packet to normally arrive can be achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method of processing a data packet according to an embodiment of the invention;
fig. 2 is a schematic diagram of a data packet transmission system according to an embodiment of the present invention;
fig. 3 is a block diagram of a packet processing apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In an alternative embodiment, fig. 1 is a flowchart of a method for processing a data packet according to an embodiment of the present invention, and as shown in fig. 1, the flowchart includes the following steps:
step S102, an interception module acquires an original data packet sent by an application program sending end, encapsulates the original data packet into a target data packet, and sends the target data packet to a forwarding module, wherein the signature of a function interface of the interception module is the same as that of a function interface of a standard network interface, and the priority of a function symbol table of the interception module is configured to be higher than that of the function symbol table of the standard network interface;
step S104, the forwarding module forwards the target data packet to a restoring module;
and step S106, the restoration module restores the target data packet into the original data packet and sends the original data packet to an application program receiving end.
Optionally, the execution main body of the above steps may be a processing device including the above intercepting module, forwarding module and restoring module, but is not limited thereto.
In this embodiment, the intercepting module employs a preloading mechanism, for example, a manner of injecting into a process of the application program when the application program runs, by which the function symbol table of the intercepting module can be located at a position to be preferentially searched, for example, the priority of the function symbol table of the intercepting module is configured to be higher than the priority of the function symbol table of the standard network interface. When the application program calls the function of the standard network interface, the function entrance of the interception module is found firstly, so that when the application program sends a data packet, the function interface corresponding to the interception module is actually executed, and the interception of data sending is realized.
Through the steps, the interception module acquires the original data packet sent by the sending end of the application program, encapsulates the original data packet into the target data packet, sends the target data packet to the forwarding module, the forwarding module forwards the target data packet to the reduction module, and the reduction module reduces the target data packet into the original data packet and sends the original data packet to the receiving end of the application program. Therefore, the problem that the normal arrival of the data packet is difficult to ensure can be solved, and the technical effect of enabling the data packet to normally arrive can be achieved.
In an optional embodiment, encapsulating, by the interception module, the original packet into a target packet includes: and adding the IP address and the port of the network protocol of the application program sending end and the IP address and the port of the application program receiving end to the head of the original data packet to obtain the target data packet.
In an optional embodiment, before the intercepting module sends the target packet to the forwarding module, the method further includes: and when the forwarding module is determined to be abnormal, the original data packet is sent through the standard network interface. In this embodiment, the interception module maintains a communication connection with the forwarding module, when the forwarding module is abnormal, the interception mechanism is automatically disabled, and the data packet is sent out using a standard network interface (for example, the target data packet may be transmitted through a network interface of an IP layer on a lower layer), which has no influence on the function of the application.
In an optional embodiment, forwarding, by the forwarding module, the target packet to the restoring module includes: and forwarding the target data packet to the restoration module by the forwarding module through a predetermined line or a predetermined routing component. In this embodiment, the predetermined line includes a predetermined line that can perform data transmission, for example, a dedicated line, and the predetermined routing component may be an intelligent routing component, for example, and may include software and hardware that form a route, for example, a central processing unit, a memory, an interface, a hard disk, a control port, and an operating system that can perform the above operations.
In an optional embodiment, before forwarding, by the forwarding module, the target packet to the restoring module, the method further includes: when the restoration module is determined to be abnormal, the forwarding module restores the target data packet into the original data packet, and sends the original data packet to an application program receiving end through the standard network interface. In this embodiment, the communication between the forwarding module and the restoring module is maintained to be normal, and when the forwarding module finds that the communication is abnormal, the forwarding module restores the target data packet to be the original data packet and continues to transmit through the network capable of normal transmission.
In an optional embodiment, forwarding, by the forwarding module, the target packet to the restoring module includes: determining the restoration module which is positioned in the same data center with the application program receiving end; forwarding, by the forwarding module, the target packet to the restoration module.
In an optional embodiment, the restoring, by the restoring module, the target data packet into the original data packet includes: analyzing to obtain the network protocol IP address and the port of the application program sending end and the IP address and the port of the application program receiving end which are included in the target data packet; and constructing an IP message, and filling a network protocol IP address and a port of the application program sending end, an IP address and a port of the application program receiving end and actual load data of the target data packet into the IP message to obtain the original data packet.
The following describes a packet transmission system according to the present invention with reference to the accompanying drawings, and fig. 2 is a schematic structural diagram of a packet transmission system according to an embodiment of the present invention, and as shown in fig. 2, the structure of the detection apparatus includes:
The interception module realizes a function interface with the same signature as a standard network interface, and the function interface is injected into the process of the application program at runtime through a pre-loading mechanism. The pre-loading mechanism enables the symbol table of the function of the interception module 202 to be in a position which is searched preferentially, and when the application program calls the function of the standard network interface, the function entry of the interception module 202 is found firstly, so that when the application program sending end 208 sends a data packet, the function interface corresponding to the interception module 202 is actually executed, and thus, the interception of data sending is realized. After intercepting the data packet sent by the application sending end 208, the intercepting module 202 re-encapsulates the data packet, adds information such as the IP address and port of the sending end and the IP address and port of the receiving end to the header of the data packet, sends the data packet to the forwarding module 204, and informs the application sending end 208 that the sending is successful. The interception module 202 maintains communication with the forwarding module 204, and when the forwarding module 202 is abnormal, the interception mechanism is automatically disabled, and the data packet is sent out by using a standard network interface, which has no influence on the function of the application sending end 208.
The forwarding module 204 receives the data packet sent by the intercepting module 202, parses the destination address of the receiving end from the data packet, and forwards the data packet to the restoring module 206 (usually located in the same data center as the application receiving end 212) that is closer to the receiving end through the dedicated line or the intelligent routing component 210 (corresponding to the predetermined line or the predetermined routing component). The forwarding module 204 maintains communication with the restoring module 206, and when the communication is sensed to be abnormal, the forwarding module 204 further resolves the IP address and port of the sending end and the IP address and port of the receiving end of the data packet. The forwarding module 204 constructs an IP packet, which is filled into the IP address and port of the sending end and the IP address and port of the receiving end, as well as the actual load data of the received data packet, and delivers the IP packet to the network (this operation implements the data processing logic using the IP layer network interface, so as to achieve the same effect as the original packet in the constructed packet). The IP message can be correctly delivered to a receiving end just like being sent from an original application program sending end.
The restoring module 206 receives the data packet sent by the forwarding module 204, and resolves the IP address and port of the sending end and the IP address and port of the receiving end in the data packet. And then, constructing an IP message, filling the IP address and the port of the sending end, the IP address and the port of the receiving end and the actual load data of the received data packet into the IP message, and delivering the IP message to the network.
The packet has been restored to this point just as if it had been sent from the application sender 208. The data packet may be received by the application receiver 318 normally, and the application may consider that the data packet is sent from the application sender 208, and cannot sense the intermediate processing procedure of the data packet.
The above describes a scene of unidirectional data transmission, and if bidirectional data transmission is to be supported, the system can be deployed at both the transmitting end and the receiving end of an application program.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In an optional embodiment, a device for processing a data packet is further provided, where the device is used to implement the foregoing embodiment and the preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 3 is a block diagram of a packet processing apparatus according to an embodiment of the present invention, and as shown in fig. 3, the apparatus includes:
an interception module 32 (corresponding to the aforementioned interception module 202) configured to obtain an original data packet sent by an application sending end, encapsulate the original data packet into a target data packet, and send the target data packet to a forwarding module, where a signature of a function interface of the interception module is the same as a signature of a function interface of a standard network interface, and a priority of a function symbol table of the interception module is configured to be higher than a priority of a function symbol table of the standard network interface;
the forwarding module 34 (corresponding to the forwarding module 204 mentioned above) is configured to forward the target packet to a restoring module;
the restoring module 36 (corresponding to the aforementioned restoring module 206) is configured to restore the target data packet to the original data packet, and send the original data packet to an application receiving end.
In an alternative embodiment, the interception module 32 is configured to encapsulate the original data packet into a target data packet by: and adding the IP address and the port of the network protocol of the application program sending end and the IP address and the port of the application program receiving end to the head of the original data packet to obtain the target data packet.
In an alternative embodiment, the apparatus is further configured to: before the intercepting module 32 sends the target data packet to the forwarding module 34, when it is determined that the forwarding module 34 is abnormal, the original data packet is sent through the standard network interface.
In an alternative embodiment, the forwarding module 34 is configured to forward the target packet to the restoring module 36 by: the forwarding module 34 forwards the target packet to the restoring module 36 through a predetermined line or a predetermined routing component.
In an optional embodiment, the apparatus is further configured to: before the forwarding module 34 forwards the target data packet to the restoring module 36, when it is determined that the restoring module 36 is abnormal, the forwarding module 34 restores the target data packet to the original data packet, and sends the original data packet to an application receiving end through the standard network interface.
In an optional embodiment, the forwarding module 34 is further configured to forward the target packet to the restoring module 36 by the forwarding module 34 as follows: determining the restoration module 36 located in the same data center as the application program receiving end; the destination packet is forwarded by the forwarding module 34 to the restoration module 36.
In an optional embodiment, the restoring module 36 is configured to restore the target data packet to the original data packet by: analyzing to obtain the network protocol IP address and the port of the application program sending end and the IP address and the port of the application program receiving end which are included in the target data packet; and constructing an IP message, and filling a network protocol IP address and a port of the application program sending end, an IP address and a port of the application program receiving end and actual load data of the target data packet into the IP message to obtain the original data packet.
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for processing a data packet, comprising:
the method comprises the steps that an interception module obtains an original data packet sent by an application sending end, the original data packet is packaged into a target data packet, and the target data packet is sent to a forwarding module, wherein the signature of a function interface of the interception module is the same as that of a function interface of a standard network interface, and the priority of a function symbol table of the interception module is configured to be higher than that of the function symbol table of the standard network interface;
forwarding, by the forwarding module, the target packet to a restoration module;
the restoration module restores the target data packet into the original data packet and sends the original data packet to an application program receiving end;
wherein the interception module is injected into the process of the application program through a preloading mechanism when the application program runs;
wherein forwarding, by the forwarding module, the target packet to a restoration module comprises:
and forwarding the target data packet to the restoration module by the forwarding module through a predetermined line or a predetermined routing component.
2. The method of claim 1, wherein encapsulating, by the intercept module, the original packet into a destination packet comprises:
and adding the IP address and the port of the network protocol of the application program sending end and the IP address and the port of the application program receiving end to the head of the original data packet to obtain the target data packet.
3. The method of claim 1, wherein before the target packet is sent by the intercept module to a forwarding module, the method further comprises:
and when the forwarding module is determined to be abnormal, the original data packet is sent through the standard network interface.
4. The method of claim 1, wherein prior to forwarding the target packet to a restoration module by the forwarding module, the method further comprises:
when the restoration module is determined to be abnormal, the forwarding module restores the target data packet into the original data packet, and sends the original data packet to an application program receiving end through the standard network interface.
5. The method of claim 1, wherein forwarding, by the forwarding module, the target packet to a restoration module comprises:
determining the restoration module which is positioned in the same data center with the application program receiving end;
forwarding, by the forwarding module, the target packet to the restoration module.
6. The method of claim 2, wherein the restoring, by the restoration module, the target data packet to the original data packet comprises:
analyzing to obtain the network protocol IP address and the port of the application program sending end and the IP address and the port of the application program receiving end which are included in the target data packet;
and constructing an IP message, and filling a network protocol IP address and a port of the application program sending end, an IP address and a port of the application program receiving end and actual load data of the target data packet into the IP message to obtain the original data packet.
7. An apparatus for processing packets, comprising:
the system comprises an interception module, a forwarding module and a processing module, wherein the interception module is used for acquiring an original data packet sent by an application sending end, packaging the original data packet into a target data packet and sending the target data packet to the forwarding module, the signature of a function interface of the interception module is the same as that of a function interface of a standard network interface, and the priority of a function symbol table of the interception module is configured to be higher than that of the function symbol table of the standard network interface;
the forwarding module is used for forwarding the target data packet to the restoring module;
the restoration module is used for restoring the target data packet into the original data packet and sending the original data packet to an application program receiving end;
wherein the interception module is injected into the process of the application program through a preloading mechanism when the application program runs;
wherein the forwarding module forwards the target packet to the restoring module by:
and forwarding the target data packet to the restoration module by the forwarding module through a predetermined line or a predetermined routing component.
8. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of claims 1 to 6 when executed.
9. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of claims 1 to 6.
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| US20040243882A1 (en) * | 2003-05-27 | 2004-12-02 | Sun Microsystems, Inc. | System and method for fault injection and monitoring |
| US7548547B2 (en) * | 2006-03-31 | 2009-06-16 | Microsoft Corporation | Controlling the transfer of terminal server data |
| CN102647358A (en) * | 2012-04-24 | 2012-08-22 | 北京星网锐捷网络技术有限公司 | Message transmitting and processing method, device, client equipment and network equipment |
| CN104753627A (en) * | 2013-12-26 | 2015-07-01 | 中兴通讯股份有限公司 | Multipath transmission method, multipath transmission system, data transmission device and data receiving device |
| US10965649B2 (en) * | 2015-10-30 | 2021-03-30 | Fatpipe, Inc. | Persistent data communication sessions across WAN |
| CN106341322A (en) * | 2016-08-28 | 2017-01-18 | 航天恒星科技有限公司 | Link switching method and system |
| CN106571977B (en) * | 2016-10-24 | 2020-07-03 | 腾讯科技（深圳）有限公司 | Data transmission method and device |
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