CN113271259A

CN113271259A - Flow control system, method, device and equipment

Info

Publication number: CN113271259A
Application number: CN202110630653.8A
Authority: CN
Inventors: 蓝邵武; 翁欣旦; 寇冠楠
Original assignee: Advanced New Technologies Co Ltd
Current assignee: Advanced New Technologies Co Ltd
Priority date: 2017-10-30
Filing date: 2017-10-30
Publication date: 2021-08-17
Anticipated expiration: 2037-10-30
Also published as: CN108011835A; CN113271259B; CN108011835B

Abstract

The embodiment of the specification discloses a flow control system, a flow control method, a flow control device and flow control equipment. Aiming at user terminals of different operating systems (such as an iOS system or an Android system), according to the authority (such as Root authority and non-Root authority) of a user at the user terminal, a cross-platform support library adapts a corresponding traffic acquisition module to the user terminal, and controls the acquired traffic (such as time delay, packet loss, disorder and the like).

Description

Flow control system, method, device and equipment

The application is a divisional application of Chinese patent application CN108011835A, and the application date of the original application is as follows: 10 months and 30 days in 2017; the application numbers are: 201711039848.5, respectively; the invention provides the following: a flow control system, method, device and apparatus.

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a flow control system, method, apparatus, and device.

Background

The user terminal continuously receives or transmits data packets to form data traffic.

In the prior art, in order to ensure and improve user experience, a flow control tool is generally developed for a user system, all flows of a user terminal are obtained, and then flow control is performed to perform a network environment simulation test.

Based on this, more adaptable flow control schemes are needed.

Disclosure of Invention

The embodiment of the specification provides a flow control system, a flow control method, a flow control device and flow control equipment, which are used for solving the following problems: to provide a more adaptable flow control scheme.

Based on this, the embodiments of the present specification provide a flow control system, which includes an adaptation module, a flow acquisition module, and a flow control module,

the adaptation module adapts the corresponding flow acquisition module to the user terminal according to the authority of the user at the user terminal aiming at the user terminals of different operating systems, wherein the authority is Root authority or non-Root authority;

the flow acquisition module acquires the data flow of the user terminal;

and the flow control module is used for controlling the acquired data flow and generating the controlled data flow, wherein the control comprises at least one of analog data flow delay, packet loss or disorder.

Meanwhile, an embodiment of the present specification further provides a flow control method, including:

aiming at user terminals of different operating systems, according to the authority of a user at the user terminal, adapting a corresponding flow acquisition module to the user terminal, wherein the authority is Root authority or non-Root authority;

acquiring the data traffic of the user terminal through the traffic acquisition mode;

and controlling the obtained data flow to generate the controlled data flow, wherein the control comprises at least one of analog data flow delay, packet loss or disorder.

Correspondingly, an embodiment of the present specification further provides a flow control device, including:

the flow acquisition module is used for acquiring the data flow of the user terminal;

a memory storing a flow control program;

and the processor calls the flow control program in the memory and executes:

Correspondingly, embodiments of the present specification also provide a non-volatile computer storage medium storing computer-executable instructions configured to:

The embodiment of the specification adopts at least one technical scheme which can achieve the following beneficial effects:

aiming at user terminals of different operating systems (such as an iOS system or an Android system), according to the authority (such as Root authority and non-Root authority) of a user at the user terminal, a cross-platform support library adapts a corresponding traffic acquisition module to the user terminal, and controls the acquired traffic (such as time delay, packet loss, disorder and the like).

By adaptively accessing the packet capturing modes with different permissions according to the types of the operating systems of the user terminals, the scheme can support various different operating systems (such as an iOS or an Android system) or user terminals with different user permissions (such as Root permissions and non-Root permissions), and various control (such as delay, disorder or packet loss simulation) is performed on the acquired traffic by adopting a traffic control model, so that the scheme has wider adaptability. In addition, the flow control model is controlled by using the flow control parameters, and various scenes are customized by the parameters, so that various weak network environments or actual scenes (such as scenes in an elevator, a moving train, a mountain and the like) are simulated and tested more accurately and conveniently; moreover, flow control can be performed on APP appointed by a user, so that the purity of flow is guaranteed, and the test accuracy is improved.

Drawings

Fig. 1 is a schematic diagram of an architecture related to a flow control system provided in an embodiment of the present disclosure;

FIG. 2 is a modular diagram of an exemplary cross-platform support library provided by an embodiment of the present specification;

fig. 3 is a schematic diagram of a flow control module provided in an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a Root traffic acquiring module provided in an embodiment of the present specification;

fig. 5 is a schematic diagram of a non-Root traffic acquisition module provided in an embodiment of the present specification;

fig. 6 is a schematic flow chart illustrating steps performed by a flow control system according to an embodiment of the present disclosure;

fig. 7 is a schematic flow chart of a flow control method provided in an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a flow control device according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present application.

The embodiments of the present specification will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of an architecture related to a flow control system provided in an embodiment of the present specification, and includes an adaptation module 101, a flow acquisition module 103, and a flow control module 105.

The adaptation module 101 adapts, for user terminals of different operating systems, the corresponding traffic acquisition module 103 to the user terminal according to the authority of the user at the user terminal, and the traffic acquisition module 103 acquires the data traffic of the user terminal; the flow control module 105 controls the obtained data flow to generate a controlled data flow, where the control includes at least one of a delay, a packet loss, or a disorder of the data flow.

The aforementioned different rights include at least having Root rights (super user rights) and not having Root rights. The user terminal may be a mobile terminal or a fixed terminal, and based on personal selection of a user, the operating system may include any one of an iOS system, an Android system, a Linux system, a Unix system, a Windows system, or a MacOS system, which may also be extended to other types of systems as needed, and is not listed here.

The corresponding traffic acquisition module 103 includes a Root traffic acquisition module and/or a non-Root traffic acquisition module corresponding to the authority of the user. Specifically, according to different permissions of a user on a user terminal, there are usually multiple preset packet capturing modes (when the acquisition objects are data packets appearing one by one, the traffic acquisition mode may also be referred to as a packet capturing mode), and each packet capturing mode corresponds to a packet capturing module, and is accessed into the user terminal in a modular form for the user to select. In the user terminal, the user permission is different, and a common situation is that the user has a Root permission or a non-Root permission.

As an exemplary implementation mode, the system is realized in a cross-platform supporting library mode, and can be used in user terminals of different operating systems. An architecture diagram of a cross-platform support library is provided in an embodiment of the present specification, and as shown in fig. 2, fig. 2 is a modular diagram of an exemplary cross-platform support library provided in an embodiment of the present specification.

When the user has Root authority, the traffic acquiring module 103 intercepts data traffic from the kernel protocol stack in a tandem manner. For example, based on the Netfilter module, detection points (such as may be set by a HOOK function) are placed at certain positions in the kernel protocol stack, and some processing functions are registered at each detection point for processing, and traffic may be acquired when passing through the detection points, that is, data traffic of the user terminal is acquired from the kernel protocol stack in a tandem manner.

When the user is not Root, the traffic acquiring module 103 establishes a Virtual Private Network (VPN), and acquires the data traffic through a port of the VPN. In other words, the traffic acquisition module 103 establishes a VPN at the user terminal, proxies the traffic interaction process between the user terminal and the outside, and executes proxy packet capture through a VPN port.

For example, adaptive access is performed according to the type of an operating system of the user terminal (for example, an iOS system or an Android system), a VPN is established locally at the user terminal, external data traffic of each application APP on the user terminal is acquired through a VPN port, and data is written back to each APP; meanwhile, connection of the user terminal to the outside is established, the received external data traffic of each APP is analyzed, and the data traffic is sent to the outside.

After obtaining the obtained data flow, the flow control module 105 controls the data flow through a preset flow control algorithm. Specifically, the flow control module 105 includes an algorithm module and a control execution module. And the algorithm module determines a control mode of each data packet according to an algorithm adopted by the algorithm module, wherein the algorithm comprises control parameters, and the control parameters comprise a time delay control parameter, a packet loss rate control parameter or a disorder rate control parameter. The control execution module executes the control mode of the data flow determined by the algorithm module, and the control execution module comprises a time delay control module, a packet loss control module or a disorder control module and respectively executes operations of time delay, discarding or disorder and the like on the data packet.

For example, the algorithm module processes the data Traffic by using a Markov Chain (Markov Chain) probabilistic model or a Traffic Control (TC) model in a Linux kernel, determines whether each data of the data Traffic needs to be controlled, and controls how to Control the data packet, so as to simulate the randomness of network transmission in a real network environment. The Markov chain probability model is a random simulation algorithm, in the algorithm, the future state distribution of the data packet only depends on the current state and is irrelevant to the past, the algorithm is adopted to judge the control modes such as time delay, packet loss rate, disorder and the like of the data packet, and the execution module executes the control modes, so that the network environment in reality can be simulated more truly. The TC model in the Linux operating system is mainly characterized in that a queue is established at a flow output port, and control such as current limiting, scheduling, discarding and the like is performed on data packets in the queue so as to simulate the phenomena of time delay, packet loss, disorder and the like in a real environment.

Further, the system also comprises a user-defined module used for a user to specify the control parameters; and the control module executes the control mode of the algorithm module on the data flow according to the control parameters appointed by the user. Namely, the user can define control parameters such as the time delay time, the packet loss probability, the disorder probability and the like by himself to simulate various real network environments with different strengths, so that simulation tests such as time delay or packet loss and the like can be more accurately carried out according to business needs.

The system further comprises a scene simulation module, and the control mode of the algorithm module on the data flow is determined through preset control parameters; and the control execution module executes the determined control mode of the algorithm module on the data flow.

In other words, the traffic control algorithm is debugged by adjusting the parameters, so that the traffic transmission result close to that in the actual specific network environment can be obtained, and thus, for each actual scene (such as a valley, an elevator and the like), simulation can be realized by setting certain control parameters. And the control parameters corresponding to the scenes are displayed in a modularized form and provided for the user to select.

For example, by setting a large out-of-order probability, a fast moving train environment is simulated; the elevator environment in ascending or descending is simulated by setting larger time delay time; by setting a larger packet loss probability, weak network environments such as valleys or basements are simulated. As an application example, the embodiment of the present specification provides a schematic diagram of a flow control module, as shown in fig. 3. Various scene modes (such as mountains, valleys, moving trains and the like) are determined by artificially appointing flow control parameters, and then various scene modes are provided for a user to carry out network test, so that the user only needs to select by one key without wasting time to simulate various scenes. Therefore, the simulation test is more convenient, and the user experience is improved.

Further, the flow control module 105 controls the obtained data flow by adjusting a flow control parameter of a flow control algorithm, where the flow control parameter is obtained according to the flow control algorithm and is used for controlling the data flow by the flow control algorithm, and the flow control parameter at least includes any one of a delay parameter, a packet loss probability parameter, and a disorder probability parameter.

Corresponding flow control parameters (at least including any one of a time delay control parameter, a packet loss probability control parameter or a disorder probability control parameter) are obtained through a flow control algorithm, and then when the data flow is controlled through a flow control model, corresponding control can be realized only by adjusting the parameters.

Further, the flow control module 105 controls the acquired data flow through a specific scene mode, wherein the specific scene mode is predetermined by a specified flow control parameter.

The flow control model is debugged by adjusting the parameters, so that the flow control model close to the actual specific scene mode can be obtained. That is, various scene modes (such as mountains, valleys, moving trains, and the like) are determined by artificially specifying flow control parameters, and then various scene modes are provided for a user to perform network tests, so that the user only needs to select one key without wasting time to simulate various scenes.

In the above example, only the flow control parameters having large influence factors on each scene are respectively mentioned, in practical applications, a certain scene mode is usually determined by a plurality of flow control parameters, the specific parameter value can be changed by adjusting the flow control parameters to change the simulation result of the flow control model, and when the simulation result is close to the experiment, the parameter value corresponding to the scene is artificially determined.

Before the obtained data flow is controlled by adopting a preset flow control model, the obtained data flow comprises all data packets generated when the user terminal interacts with the outside, obviously, the data flow is usually formed by mixing the data packets of a plurality of APPs, on the basis, for improving the purity degree of the data flow, the related data packets of the APPs are required to be separated, and only the flow which is interested by a user is reserved.

Based on this, the flow control system further comprises a flow identification module: acquiring data traffic belonging to a designated APP according to setting information of a user terminal, wherein the setting information of the user terminal comprises the information of the designated APP. That is, the data traffic belonging to a specific APP only includes the data packet generated when the APP interacts with the outside world, and does not include the data packets of other APPs.

The setting information of the user terminal may be a default certain or multiple APPs, or may provide multiple APPs run by the user terminal for the user to select and specify. In other words, the acquired traffic is identified and filtered according to the setting information of the user terminal, and only the data traffic belonging to the specified application is reserved.

It should be noted that the number of the specific application programs APP may be one or more. When a user designates a plurality of APPs, each designated APP corresponds to a group of related data traffic. In addition, the process of specifying the APP and selecting the traffic acquisition module is typically performed before acquiring traffic. A user can firstly designate an APP and then select a flow acquisition module; or the flow acquisition module can be selected first and then the APP can be appointed.

In a specific implementation manner, the traffic identification module may obtain data traffic related to an APP specified by a user in a port matching manner. Specifically, a data packet containing a port number is acquired through a preset traffic acquisition module; matching the port number with flow port information provided by an operating system of the user terminal to obtain an APP identifier corresponding to the port number, wherein the flow port information provided by the operating system of the user terminal comprises a corresponding relation between the port number and the APP identifier; and determining the data traffic related to the appointed APP according to a data packet containing a port number corresponding to the appointed APP identifier.

For example, in a Linux/Unix system, a tcp file in a "/proc/net" directory in the system stores a corresponding relationship between a port number and an APP unique identifier; and storing the corresponding relation between the port number and the APP unique identifier through a flow port table in the Windows system. That is, acquiring the port number of each data packet in the traffic, the APP identifier corresponding to the port number can be obtained in a matching manner, so as to obtain the data stream belonging to the APP.

In another specific implementation, the traffic identification module may obtain the data traffic related to the specified APP by using a packet detection technology. Specifically, data traffic is acquired through a preset traffic acquisition mode; identifying the content of the data flow to acquire the data flow belonging to the appointed APP; the content of the data traffic includes one or more of a transport protocol, a port number, an IP address, a unique address identifier URL, or a data payload of the data traffic.

Since different APPs often depend on different protocols, which have their special features, such as specific ports, specific strings, or specific server IPs, the APP may generate Uniform Resource Locators (URLs) and specific interactive contents (e.g., when the APP requests downloading from the server) during the interaction with the outside world, and so on. Based on the data packet, a feature recognition technology can be adopted to determine the application corresponding to the data packet by detecting the relevant features in the data traffic. For example, Deep Packet Inspection (DPI) is used to identify the data payload of a Packet to determine the application to which the Packet belongs.

Through discerning user terminal's flow, can appoint according to actual need and catch the package, only keep the data flow who belongs to the APP that the user is interested in, improve the purity of flow, provide more accurate foundation for subsequent work.

The foregoing method describes how to identify data traffic belonging to an APP that is of interest to a user, and it should be noted that one APP may simultaneously employ multiple services, and the service of interest to the user can also be identified by the same principle (port number matching or deep packet identification), thereby further refining the attribution of the data traffic.

When a user specifies a plurality of APPs in advance, each APP has a respective associated set of data traffic. The flow acquisition is carried out through the appointed application, the purity of the flow is guaranteed, and the testing accuracy is improved. When flow control is performed on the designated application, the flow of other unspecified applications cannot be changed, and comparison by a user is facilitated.

In the flow acquisition process, different flow acquisition modes can be combined with flow identification. As an exemplary implementation manner, an embodiment of this specification provides a schematic diagram of a Root traffic acquisition module, as shown in fig. 4; an embodiment of the present specification further provides a schematic diagram of a non-Root traffic acquisition module, as shown in fig. 5.

The flow control system can be adaptively accessed to the user terminal platform in the form of a plug-in or a flow control tool. As an exemplary implementation, in an actual application scenario, after the user terminal platform has been accessed, the flow control system may perform the following steps, as shown in fig. 6, where fig. 6 is a schematic flowchart of the flow control system performing steps provided in this embodiment of this specification, and includes:

s601, opening a packet capturing tool, initializing a system and prompting a flow acquisition mode;

s603, selecting a flow acquisition mode by a user, and designating an application and a scene mode to be captured;

s605, adaptively starting a cross-platform support library according to the setting of a user;

s607, judging whether the local networking information file in the system can be read; if so, identifying data traffic according to port and application UID matching; if not, carrying out DPI identification on the data flow;

s609, determining a control mode of the flow control model to the data packet according to the parameters of the scene mode;

s611, judging whether to control the data packet according to the attribution of the data packet identified in the S607 and the application which needs to be captured and is appointed in the S603; if yes, executing the control mode determined in the S609 on the data packet, and writing back to the network card; if not, directly writing back to the network card.

By adaptively accessing the packet capturing modes with different permissions according to the types of the operating systems of the user terminals, the scheme can support various different operating systems (such as an iOS or an Android system) or user terminals with different user permissions (such as Root permissions and non-Root permissions), and various control (such as time delay, disorder or packet loss) is performed on the acquired traffic by adopting a traffic control algorithm, so that the scheme has wider adaptability. In addition, the flow control algorithm is controlled by using the flow control parameters, and various scenes are customized by the parameters, so that the simulation test is performed on various weak network environments or actual scenes (such as scenes in an elevator, a moving train, a mountain and the like) more conveniently; moreover, flow control can be performed on APP appointed by a user, so that the purity of flow is guaranteed, and the test accuracy is improved.

Based on the same idea, the present invention further provides a flow control method, as shown in fig. 7, where fig. 7 is a schematic flow diagram of the flow control method provided in the embodiment of this specification, and the flow control method includes:

s701, aiming at user terminals of different operating systems, according to the authority of a user at the user terminal, adapting a corresponding flow acquisition mode to the user terminal, wherein the authority is Root authority or non-Root authority;

s703, acquiring the data traffic of the user terminal through the traffic acquisition mode;

s705, controlling the obtained data flow to generate a controlled data flow, wherein the controlling includes at least one of simulating data flow delay, packet loss or disorder.

Further, for the step S703, acquiring the data traffic of the ue through the traffic acquisition mode includes:

when the authority of the user at the user terminal is Root authority, acquiring data flow from a kernel protocol stack in a serial connection mode; alternatively, the first and second electrodes may be,

and when the authority of the user at the user terminal is a non-Root authority, establishing a Virtual Private Network (VPN), and acquiring data traffic through a port of the VPN, wherein the VPN is used for acting traffic interaction between the user terminal and the outside.

Further, the establishing a virtual private network VPN, where data traffic is acquired through a port of the VPN, includes: according to the type of a user terminal platform, a VPN is adaptively established; acquiring external data traffic of each application program APP on the user terminal through the VPN port, and writing back data to each APP; and establishing connection of the user terminal to the outside, analyzing the received external data traffic of each application program APP, and sending the external data traffic to the outside through the VPN port.

Further, the step of controlling the acquired data traffic in S705 to generate a controlled data traffic includes: and controlling the acquired data flow by adjusting a flow control parameter of a flow control algorithm, wherein the flow control parameter is obtained according to the flow control algorithm, is used for controlling the data flow by the flow control model, and at least comprises any one of a time delay parameter, a packet loss probability parameter or a disorder probability parameter.

Further, the aforementioned controlling the acquired data flow by adjusting the flow control parameter of the flow control algorithm includes: and controlling the acquired data flow through a specific scene mode, wherein the specific scene mode is predetermined by a specified flow control parameter.

Further, before controlling the obtained data traffic by using a preset traffic control model, the method further includes step S707, obtaining the data traffic belonging to a specific application APP according to the setting information of the user terminal, where the setting information of the user terminal includes the information of the specific APP.

Further, in step S707, according to the instruction of the user, acquiring the data traffic related to the APP specified by the user includes: acquiring a data packet containing a port number through a preset traffic acquisition mode; matching the port number with traffic port information provided by an operating system of the user terminal to acquire an APP identifier corresponding to the port number, wherein the traffic port information comprises a corresponding relationship between the port number and the APP identifier; and determining the data traffic belonging to the appointed sequence APP according to a data packet containing a port number corresponding to the appointed sequence APP identifier.

Further, in step S707, according to the instruction of the user, acquiring the data traffic related to the APP specified by the user includes: acquiring data flow through a preset flow acquisition mode; identifying the content of the data traffic to acquire the data traffic belonging to the specified APP; the content of the data traffic includes one or more of a transport protocol, a port number, an IP address, a unique address identifier URL, or a data payload of the data traffic.

Further, the method further includes S709, sending the controlled data traffic to a network card of the user terminal.

Based on the same idea, the present invention further provides a flow control device, as shown in fig. 8, where fig. 8 is a schematic structural diagram of the flow control device provided in the embodiment of the present specification, and the flow control device includes:

an adaptation module 801, adapted to adapt a corresponding traffic acquisition module to a user terminal of different operating systems according to a permission of a user at the user terminal, where the permission is a Root permission or a non-Root permission;

a traffic obtaining module 803, which obtains the data traffic of the user terminal;

the flow control module 805 is configured to control the obtained data flow, and generate a controlled data flow, where the controlling includes at least one of simulating data flow delay, packet loss, or disorder.

Correspondingly, an embodiment of the present application further provides a flow control device, where the device includes:

a memory storing a flow control program;

and the processor calls the flow control program in the memory and executes:

Based on the same inventive concept, embodiments of the present application further provide a corresponding non-volatile computer storage medium, in which computer-executable instructions are stored, where the computer-executable instructions are configured to:

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the method, apparatus, device and medium embodiments, since they are substantially similar to the system embodiments, the description is simple, and reference may be made to part of the description of the system embodiments for relevant points, which is not repeated here.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps or modules recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Furthermore, nowadays, instead of manually making an Integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Hardware Description Language), traffic, pl (core universal Programming Language), HDCal (jhdware Description Language), lang, Lola, HDL, laspam, hardward Description Language (vhr Description Language), vhal (Hardware Description Language), and vhigh-Language, which are currently used in most common. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.

The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory. Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may thus be considered a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functions of the units may be implemented in the same software and/or hardware or in one or more pieces of software and/or hardware when implementing the embodiments of the present description.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transient media) such as modulated data signal numbers and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

As will be appreciated by one skilled in the art, one or more embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present description may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

Embodiments of the present description may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular transactions or implement particular abstract data types. Embodiments of the present description may also be practiced in distributed computing environments where transactions are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present specification, and is not intended to limit the present application. Various modifications and changes may occur to the embodiments described herein, as will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the present application.

Claims

1. A flow control system comprises an adaptation module, a flow acquisition module and a flow control module,

the adaptation module adapts the corresponding flow acquisition module to the user terminal according to the authority of the user at the user terminal, wherein the authority is Root authority or non-Root authority;

the flow acquisition module acquires the data flow of the user terminal;

the flow control module is used for controlling the acquired data flow and generating a controlled data flow;

the traffic acquisition module comprises a Root traffic acquisition module and a non-Root traffic acquisition module, and the Root traffic acquisition module and the non-Root traffic acquisition module correspond to different traffic acquisition modes according to different user terminal permissions.

2. The system of claim 1, further comprising:

and the sending module is used for sending the controlled data flow to the network card of the user terminal.

3. The system of claim 1, the flow control module comprising an algorithm module and a control execution module;

the algorithm module determines a control mode of each data packet according to an algorithm adopted by the algorithm module, wherein the algorithm comprises control parameters, and the control parameters comprise a time delay control parameter, a packet loss rate control parameter or a disorder rate control parameter;

and the control execution module executes the control mode of the data flow determined by the algorithm module according to the control parameters, and comprises a time delay control module, a packet loss control module or a disorder control module.

4. The system of claim 3, the flow control module,

the system also comprises a scene simulation module, a data flow control mode of the algorithm module is determined through preset control parameters;

and the control execution module executes the control mode of the algorithm module on the data flow.

5. The system of claim 3, the flow control module,

the system also comprises a user self-defining module used for the user to specify the control parameters;

the algorithm module determines a control mode of data flow according to the control parameters specified by the user;

and the control execution module is used for executing the control mode of the data flow determined by the algorithm module according to the control parameters specified by the user.

6. The system according to claim 1, wherein the flow control module controls the acquired data flow by adjusting a flow control parameter of a flow control algorithm, wherein the flow control parameter is obtained according to the flow control algorithm and used for controlling the data flow by the flow control algorithm, and the flow control parameter at least includes any one of a delay parameter, a packet loss probability parameter, or a disorder probability parameter.

7. The system of claim 6, the flow control module controls the acquired data flow through a specific scene mode, wherein the specific scene mode is predetermined by a specified flow control parameter.

8. The system according to claim 1, wherein the non-Root traffic obtaining module is adapted to establish a VPN according to a type of an operating system of the user terminal when the permission of the user at the user terminal is a non-Root permission, obtain external data traffic of the APPs on the user terminal, and write back data to each APP; and establishing connection of the user terminal to the outside, analyzing the received external data traffic of each APP, and sending the data traffic to the outside.

9. The system of claim 1, further comprising a traffic identification module, configured to obtain data traffic belonging to a specified APP according to setting information of a user terminal, where the setting information of the user terminal includes information of the specified APP.

10. The system of claim 9, the traffic identification module,

acquiring a data packet containing a port number through a preset flow acquisition module;

matching the port number with traffic port information provided by an operating system of the user terminal to acquire an APP identifier corresponding to the port number, wherein the traffic port information comprises a corresponding relationship between the port number and the APP identifier;

and determining the data traffic belonging to the designated program APP according to a data packet containing a port number corresponding to the identification of the designated program APP.

11. The system of claim 9, the traffic identification module,

acquiring data flow through a preset flow acquisition module;

identifying the content of the data traffic to acquire the data traffic belonging to the specified APP;

the content of the data traffic includes one or more of a transport protocol, a port number, an IP address, a unique address identifier URL, or a data payload of the data traffic.

12. The system of claim 1, the traffic acquisition module, comprising:

a Root flow acquisition module, which acquires data flow from a kernel protocol stack in a serial connection mode when the authority of the user at the user terminal is the Root authority; and/or the presence of a gas in the gas,

and the non-Root flow acquisition module is used for establishing a Virtual Private Network (VPN) when the authority of the user at the user terminal is the non-Root authority, acquiring data flow through a port of the VPN, and using the VPN for acting the flow interaction between the user terminal and the outside.

13. The system of claim 1, the controlling comprising simulating at least one of data traffic delay, packet loss, or misordering.

14. A method of flow control, comprising:

according to the authority of a user at a user terminal, adapting a corresponding flow acquisition mode to the user terminal, wherein the authority is Root authority or non-Root authority;

controlling the obtained data flow to generate a controlled data flow;

and acquiring the data traffic of the user terminal through the traffic acquisition mode, wherein the data traffic of the user terminal is acquired through different traffic acquisition modes according to whether the authority of the user at the user terminal is Root authority or non-Root authority.

15. The method of claim 14, further comprising:

and sending the controlled data flow to a network card of the user terminal.

16. The method of claim 14, establishing a Virtual Private Network (VPN) through a port of which data traffic is obtained, comprising:

according to the type of a user terminal platform, a VPN is adaptively established;

acquiring external data traffic of each application program APP on the user terminal through the VPN port, and writing back data to each APP;

and establishing connection of the user terminal to the outside, analyzing the received external data traffic of each application program APP, and sending the external data traffic to the outside through the VPN port.

17. The method of claim 14, wherein the step of controlling the acquired data traffic by using a preset algorithm to generate a controlled data traffic comprises:

and controlling the acquired data flow by adjusting a flow control parameter of a flow control algorithm, wherein the flow control parameter is acquired according to the flow control algorithm, is used for controlling the data flow by the flow control algorithm, and at least comprises one of a time delay parameter, a packet loss probability parameter or a disorder probability parameter.

18. The method of claim 17, wherein controlling the acquired data flow by adjusting a flow control parameter of the flow control algorithm comprises:

and controlling the acquired data flow through a specific scene mode, wherein the specific scene mode is predetermined by a specified flow control parameter.

19. The method of claim 14, prior to controlling the acquired data flow using a predetermined flow control algorithm, further comprising:

acquiring data traffic belonging to a specified application program APP according to setting information of a user terminal, wherein the setting information of the user terminal comprises the information of the specified APP.

20. The method of claim 19, wherein obtaining data traffic related to a user-specified APP according to the setting information of the user terminal comprises:

acquiring a data packet containing a port number through a preset traffic acquisition mode;

and determining the data traffic belonging to the appointed APP according to a data packet containing a port number corresponding to the appointed APP identifier.

21. The method of claim 19, wherein obtaining data traffic related to a user-specified APP according to the setting information of the user terminal comprises:

acquiring data flow through a preset flow acquisition mode;

22. The method of claim 14, wherein the acquiring data traffic of the ue through the traffic acquisition mode comprises:

23. A flow control device, the device comprising:

the adaptation module adapts the corresponding flow acquisition mode to the user terminal according to the authority of the user at the user terminal, wherein the authority is Root authority or non-Root authority;

the flow acquisition module acquires the data flow of the user terminal through the flow acquisition mode;

the flow control module is used for controlling the acquired data flow and generating the controlled data flow, wherein the control comprises at least one of analog data flow delay, packet loss or disorder;

24. A flow control apparatus, the apparatus comprising:

a memory storing a flow control program;

and the processor calls the flow control program in the memory and executes:

controlling the obtained data flow to generate a controlled data flow, wherein the control comprises at least one of analog data flow delay, packet loss or disorder;