CN107911237A - Data packet quick determination method in a kind of user's space based on DPDK - Google Patents
Data packet quick determination method in a kind of user's space based on DPDK Download PDFInfo
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- CN107911237A CN107911237A CN201711102664.9A CN201711102664A CN107911237A CN 107911237 A CN107911237 A CN 107911237A CN 201711102664 A CN201711102664 A CN 201711102664A CN 107911237 A CN107911237 A CN 107911237A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
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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
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
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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
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Abstract
The invention discloses data packet quick determination method in a kind of user's space based on DPDK.Including following steps：A, data flow is received from network interface card, the more queues of network interface card is configured, queue are bound with the cpu logic core specified, data packet will be transferred in the user's space that DPDK is provided around linux kernel；B, the processing of data packet is carried out in the user's space that DPDK is provided, is specifically：B1, peeled off data frame, until arriving application layer；B2, analysis HTTP message feature, the feature for comparing the various applications of each application layer carry out Classification and Identification；C, last, record sort is as a result, detection is completed.
Description
Technical field
It is specifically the quick side of detection of data packet in a kind of user's space based on DPDK the invention belongs to information security field
Method.
Background technology
Nowadays the quantity of 4G networks and computer network user drastically rise, and the use of all kinds of intelligent mobile terminals makes
Obtain core net entrance flow and the growth of explosion type occur.The network traffic recording operation conditions of current network, so to net
The analysis of network flow contributes to network management personnel to carry out the test of network performance, and carries out network successively with the result according to test
The optimization of framework, the flow that notes abnormalities, the process for excluding network failure, finally take corresponding management and control measures.
Under new network situation, in face of the network environment of a large amount of high speed high throughputs, based on legacy operating system kernel
Data collecting mechanism has been difficult to match existing demand in packet loss and handling capacity.In current high-speed networks environment
In, high performance system needs successfully to collect and handle mass data within the extremely limited time, therefore how efficient, complete
Whole, fast Acquisition data packet is the basis of accurate analysis network data and carries out the key of next step management and control.
DPDK, that is, Intel's data surface development kit, is to aim at the quick processing of message based on x86 platform developments and provide
A series of storehouses and the set of driving.DPDK provides data surface function to substitute the system of kernel to call by environment abstraction layer, makes
NIC driver is operated in User space with UIO mechanism, get around kernel network protocol stack.Using poll and zero duplication technology from
Network interface card collects message, and the performance of application program processing message is improved using big page and the affine mechanism of CPU, it is possible thereby to save
Expense, reaches the requirement for improving processing data packets performance.
The content of the invention
The purpose of the present invention is to propose to data packet quick determination method in a kind of user's space based on DPDK, DPDK is utilized
Optimization method, the data packet that network interface card is received be transferred to DPDK offer user's space in, user's space carry out data
The processing of bag.Processing procedure has bypassed the processing of network protocol stack in linux kernel, eliminates frequent system calling and memory
Copy, the received data packet of network interface card are copied directly to user's space, and the processing of data packet is carried out in user's space.In order to realize pair
The detection of data packet is, it is necessary to be deep into the application layer of data frame, to distinguish the data of different application.
To achieve these goals, the present invention adopts the following technical scheme that：
Data packet quick determination method in a kind of user's space based on DPDK,
A, data flow is received from network interface card, the more queues of network interface card is configured, queue is tied up with the cpu logic core specified
Fixed, data packet will be transferred in the user's space that DPDK is provided around linux kernel；
B, the processing of data packet is carried out in the user's space that DPDK is provided, is specifically：
B1, peeled off data frame, until arriving application layer；
B2, analysis HTTP message feature, the feature for comparing the various applications of each application layer carry out Classification and Identification；
C, last, record sort is as a result, detection is completed.
The step A is specifically included：
Preprocessed data bag, when data packet reaches network interface card, receives all data packets by network interface card, is by Network card setup
Promiscuous mode, while the hardware offloading functions of network interface card are opened, TCP groups bag is carried out on hardware in advance, multiple TCP bursts are carried out
Processing aggregates into a big burst, distribution receiving queue after data packet pretreatment；The method bag of the distribution receiving queue
Include：
The available Logic Core number that A1, inquiry system are included, records this check figure, according to existing processor check figure and
Network interface card number of queues, configures the receiving queue of network interface card；
One A2, configuration control message queue, make this queue be distinguished with substantial amounts of processing data packets and isolate, with convenient
Handled using single core；
A3, according to load balancing principle, remainder data flow is evenly distributed in remaining queue；
A4, the user's space mechanism provided using DPDK, the processing of data packet is carried out in client layer.
The step B1 is comprised the concrete steps that：According to the form of ICP/IP protocol stack package, packet header is carried out to data message
Peel off, arrive application layer until peeling off, data packet application layer data is recombinated.
The step B2 is comprised the concrete steps that：
B2.1, match multiple feature fields using multi-mode matching method at the same time, to accelerate recognition speed；
Data packet is classified the result of feature field identification by B2.2, basis, and classification is the data for application layer
Carry out, the data packet for including identical host fields in HTTP message is divided into level-one class first, then by same host level-ones
The data packet of identical Refer fields is divided into multiple two level subclasses under class, stores the result of each subclass.
The receiving queue of configuration network interface card is specially in the step A1：
A1.1, configuration one individually control queue, for being controlled to all data queues, binding one is individually patrolled
Core is collected, this queue is distinguished with substantial amounts of processing data packets and isolates；
A1.2, configuration data message queue：
If Logic Core number lcore_num>2*quene_num+1, then specify each two Logic Core to handle a datagram
Literary queue, and configure the data message of the two core equilibrium treatment same queues；
If Logic Core number lcore_num≤2*quene_num+1, each queue is specified to be located by a Logic Core
Reason.
Relative to existing method, data packet quick determination method is beneficial in a kind of user's space based on DPDK of the present invention
Effect is：
Data packet quick determination method in a kind of user's space based on DPDK of the present invention, with traditional data packet detection not
Together, this method has bypassed kernel protocol stack, does not use the data packet that the ICP/IP protocol stack of kernel offer is collected into network interface card
Handled, but the platform of the user's space of DPDK offers is provided, utilize the API that DPDK is provided to carry out the processing of data packet.
This method mainly has the advantage that：
(1) to the adaptability of massive dataflow bag：Because the present invention is the exploitation carried out based on DPDK development kits, therefore
Just there is the ability of processing massive dataflow.Such as：Eliminate multiple memory copying；The method handled using poll, is reduced
Frequent context switching carries out the overhead of band of discontinuance；Data queue and processor core are bound again, avoids and is
The damage of performance caused by system calling.This allows for the treatment effeciency higher of data packet.
(2) to the high efficiency of processing data packets：More queues of network interface card are bound with Logic Core, specify each Logic Core
Processing task, so avoid the resource contention between different kernels.Distributing to for the processing task balance of data packet
The Logic Core of each processor, avoids thread and frequently switches between different IPs, greatly reduce performance loss, it also avoid
Multitask handover overhead in one core.
(3) feasibility implemented to system：Simultaneously special hardware device is not required in the implementation of method, it is only necessary to general
On processor platform.User's space provides abundant API, different types of data packet can be developed accordingly
Handling implement, very flexibly.
Brief description of the drawings
Fig. 1 is the complete detection model of the present invention；
Fig. 2 is the entire flow figure of the data packet detection method of the invention based on DPDK.
Embodiment
In order to clarify the technical solutions and technical objectives of the present invention, below in conjunction with the accompanying drawings and embodiment is to the present invention
It is described further.
Data packet quick determination method is based primarily upon at 2 points in a kind of user's space based on DPDK：
First is to receive data flow from network interface card, and the more queues of network interface card are configured, by queue and the cpu logic core specified into
Row binding, data packet will be transferred in the user's space that DPDK is provided around linux kernel.
Second is the processing for carrying out data packet in the user space, and data frame is peeled off, until arriving application layer, mainly
Http message characteristics are analyzed, the feature for comparing the various applications of each application layer carries out Classification and Identification.Thereby realize and flowing greatly
Fast and effectively data monitoring under amount.
DPDK is absorbed in the high-performance treatments of data packet in network application, it is a software optimization storehouse, and target is to solve
Ultimate attainment package processing capability is played in multinuclear general processor the problem of.
Traditional linux kernel, its control plane and data Forwarding plane do not separate, and are not suitable for processing large scale network
Data packet.If the application program directly processing of adapter network packet, memory management and CPU scheduling can be allowed, then performance can
To obtain the lifting of a matter.In order to reach this target, first will solve the problems, such as just to be to bypass linux kernel agreement
Stack, because Linux kernel protocol stack performance is not very outstanding, if allowing each data packet to come by Linux protocol stacks
Processing, that will be very slow, therefore can just not have to without Linux protocol stacks.
DPDK application programs are to operate in the datum plane storehouse provided on user's space using itself come transceiving data bag, around
Linux kernel protocol stack has been crossed to data packet processing procedure.Linux kernel regards DPDK application programs as a common use
Family state process, including its compiling, connection and load mode and ordinary procedure are different without what.DPDK programs can only after starting
There is a main thread, then create some sub-line journeys and be tied on specified core cpu and run.
Data packet is transferred to after user plane, it is necessary to handle data packet using instrument.User's space provides
Types of applications routine interface, for calling system resource develops systemic-function.The present invention have invoked interface function pair
Data packet carries out the operation such as peeling off.
Different applications communicate with different network application agreements.When client accesses server, can pass through
Http protocol communicates.The basic transmitting procedure of http protocol can be described as, and TCP links, link are established by three-way handshake
Connection is successfully established, and client sends HTTP request, and server end response, provides response message transmission data.
Request message, which carries information, includes request row, stem row and entity body.Wherein request row in have three it is important in
Hold, i.e. method, URL the and HTTP versions of request resource.Information in stem row is the important letter that this method wants Detection and Extraction
Breath.Determine which application is data packet belong to by analyzing these information.Using classical multimode matching algorithm, to data
When frame is detected, multiple characteristic characters can be matched at the same time, improve detection speed.
Cascade System in a network, can be facilitated following control by the present invention according to association actual purpose.It is right
In traditional detection method, the method for selection series connection in a network can bring certain time delay directly to link, but of the invention
Processing speed is faster than the processing speed of traditional data packet inspection method, bring when postpone a meeting or conference and greatly reduce.
Method flow
1. build DPDK environment:Set 2M big pages, using DPDK provide instrument such as dpdk-devbind.py network interface card from
Unbinded under linux controls, bonding network is snapped into the igb_uio modules of DPDK offers again.
2. from network interface card received data packet：In the network of access receiving stream that detecting system is directly connected amount detection, net is set
Block for promiscuous mode.
3. a pair data packet pre-processes:Need to open network interface card recipient polymerization RSC hardware offloading functions, by TCP data
Burst is combined in advance, allows network interface card hardware to share the computational burden of CPU.
4. queue configures:
4.1. the available queue of system and logic nuclear resource are determined：The available Logic Core number lcore_num of inquiry system,
The number quene_num of network interface card queue, the Logic Core number and number of queues of comparison system；
4.2. configuration control queue, for being controlled to all data queues, binds a single Logic Core, makes this
Queue is distinguished with substantial amounts of processing data packets to be isolated；
4.3. configuration data message queue:If Logic Core number lcore_num>2*quene_num+1, then specify each two
Logic Core handles a data message queue, and configures the data message of the two core equilibrium treatment same queues；
If Logic Core number lcore_num≤2*quene_num+1, each queue is specified to be located by a Logic Core
Reason；
5. data packet is sent into kernel spacing：The user's space mechanism provided using DPDK, makes data queue be assisted around kernel
Stack is discussed, data packet is sent in user's space；
6. unpack：The characteristics of according to TCP/IP packages, carry out data packet to unpack data packets of for network interface card capture, its
Encapsulation is mainly according to ICP/IP protocol.In order to achieve the purpose that the various applications of identification, it is necessary to the bag of each protocol layer will be peeled off
Head, until reaching application layer；
7. recombinate application layer data packet：According to the message characteristic of http protocol, the identification of keyword is carried out, using multimode
Method of completing the square, each message are carried out at the same time the matching of multiple characteristic characters；
8. data packet is classified according to the result to feature recognition, it is specially：First by identical HTTP message
The data packet of host fields is divided into level-one class.Then the data packet of identical Refer fields under same host level-ones class is divided into
Multiple two level subclasses, delimit memory headroom, and classification results are stored in database.
Claims (5)
- A kind of 1. data packet quick determination method in user's space based on DPDK, it is characterised in thatA, data flow is received from network interface card, the more queues of network interface card is configured, queue is bound with the cpu logic core specified, Data packet will be transferred in the user's space that DPDK is provided around linux kernel；B, the processing of data packet is carried out in the user's space that DPDK is provided, is specifically：B1, peeled off data frame, until arriving application layer；B2, analysis HTTP message feature, the feature for comparing the various applications of each application layer carry out Classification and Identification；C, last, record sort is as a result, detection is completed.
- 2. data packet quick determination method in the user's space according to claim 1 based on DPDK, it is characterised in that institute The step A stated is specifically included：Preprocessed data bag, when data packet reaches network interface card, receives all data packets by network interface card, is to mix by Network card setup Pattern, while the hardware offloading functions of network interface card are opened, TCP groups bag is carried out on hardware in advance, multiple TCP bursts are handled A big burst is aggregated into, distribution receiving queue after data packet pretreatment；The method of the distribution receiving queue includes：The available Logic Core number that A1, inquiry system are included, records this check figure, according to existing processor check figure and network interface card Number of queues, configures the receiving queue of network interface card；One A2, configuration control message queue, make this queue be distinguished with substantial amounts of processing data packets and isolate, with easy to use Single core is handled；A3, according to load balancing principle, remainder data flow is evenly distributed in remaining queue；A4, the user's space mechanism provided using DPDK, the processing of data packet is carried out in client layer.
- 3. data packet quick determination method in the user's space according to claim 2 based on DPDK, it is characterised in that institute Step B1 is stated to comprise the concrete steps that：According to the form of ICP/IP protocol stack package, the stripping in packet header is carried out to data message, until stripping From to application layer, data packet application layer data is recombinated.
- 4. data packet quick determination method in the user's space according to claim 2 based on DPDK, it is characterised in that institute Step B2 is stated to comprise the concrete steps that：B2.1, match multiple feature fields using multi-mode matching method at the same time, to accelerate recognition speed；Data packet is classified the result of feature field identification by B2.2, basis, and classification is the data progress for application layer, The data packet for including identical host fields in HTTP message is divided into level-one class first, then by phase under same host level-ones class Data packet with Refer fields is divided into multiple two level subclasses, stores the result of each subclass.
- 5. data packet quick determination method in the user's space according to claim 2 based on DPDK, it is characterised in that institute State in step A1 configure network interface card receiving queue be specially：A1.1, configuration one individually control queue, for being controlled to all data queues, bind a single logic Core, makes this queue be distinguished with substantial amounts of processing data packets and isolates；A1.2, configuration data message queue：If Logic Core number lcore_num>2*quene_num+1, then specify each two Logic Core to handle a data message team Row, and configure the data message of the two core equilibrium treatment same queues；If Logic Core number lcore_num≤2*quene_num+1, each queue is specified to be handled by a Logic Core.
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| CN109271268A (en) * | 2018-09-04 | 2019-01-25 | 山东超越数控电子股份有限公司 | A kind of intelligent fault-tolerance method based on DPDK |
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| CN110190893A (en) * | 2019-06-18 | 2019-08-30 | 中国电子科技集团公司第五十四研究所 | A kind of satellite channel high speed reliable data transmission method based on DPDK |
| CN110286743A (en) * | 2019-07-03 | 2019-09-27 | 浪潮云信息技术有限公司 | A kind of data center's power-saving method, terminal, computer readable storage medium |
| CN110750469A (en) * | 2018-07-23 | 2020-02-04 | 大唐移动通信设备有限公司 | Application data processing method and device |
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| CN111813547A (en) * | 2020-06-30 | 2020-10-23 | 武汉虹旭信息技术有限责任公司 | DPDK-based data packet processing method and device |
| CN112737932A (en) * | 2020-12-25 | 2021-04-30 | 江苏省未来网络创新研究院 | DPDK-based high-performance IPSCE gateway |
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| CN113382014B (en) * | 2021-06-23 | 2022-12-06 | 中移（杭州）信息技术有限公司 | Negotiation processing method, device, terminal equipment and storage medium |
| CN113382014A (en) * | 2021-06-23 | 2021-09-10 | 中移（杭州）信息技术有限公司 | Negotiation processing method, device, terminal equipment and storage medium |
| CN114944996B (en) * | 2022-07-27 | 2022-09-30 | 北京立华莱康平台科技有限公司 | Data acquisition method and device and computer readable medium |
| CN114944996A (en) * | 2022-07-27 | 2022-08-26 | 北京立华莱康平台科技有限公司 | Data acquisition method and device and computer readable medium |
| US11979459B1 (en) * | 2023-10-12 | 2024-05-07 | International Business Machines Corporation | Configuration of data connections between a host and a shared network adapter |
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