WO2017020607A1 - Procédé, serveur et système de lecture de données de rdp - Google Patents

Procédé, serveur et système de lecture de données de rdp Download PDF

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Publication number
WO2017020607A1
WO2017020607A1 PCT/CN2016/079192 CN2016079192W WO2017020607A1 WO 2017020607 A1 WO2017020607 A1 WO 2017020607A1 CN 2016079192 W CN2016079192 W CN 2016079192W WO 2017020607 A1 WO2017020607 A1 WO 2017020607A1
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WO
WIPO (PCT)
Prior art keywords
playback
data
server
client
play
Prior art date
Application number
PCT/CN2016/079192
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English (en)
Chinese (zh)
Inventor
魏国强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017020607A1 publication Critical patent/WO2017020607A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/131—Protocols for games, networked simulations or virtual reality

Definitions

  • RDP Remote Desktop Protocol
  • Windows family Accessing remote hosts through this protocol is the default function of the Windows family. Widespread deployment of Windows has made RDP widely used, such as various virtual host services on the public network, virtual host environments used in private networks, and remote transport of telecommunication networks. Dimension. If the host is running a Windows environment, there is usually a need for remote control through RDP.
  • the user remotely operates the host through the RDP protocol. If a critical application is running on the remote host, the user's operation usually needs to be audited afterwards. Auditing can be performed at multiple levels, for example, log auditing can be performed on specific applications operated by users, and auditing can be performed in the background of remote hosts. Among them, it is convenient and common to audit through RDP, because it is convenient to intercept the RDP data stream between the user and the remote host, and the data stream is not specific to any specific application, can be universal, and RDP data stream The data itself is compressed, and the data stream is much less than the final image data.
  • the RDP protocol stipulates that the image stream can be reconstructed theoretically by parsing the RDP data stream. However, since the RDP protocol itself is very large and the RDP protocol is constantly evolving, it is very complicated to reconstruct the image stream by parsing the RDP protocol. The problem of parsing the latest protocol data.
  • the playback server reads the PDU of the RDP and the timestamp of the transmission of the PDU;
  • the graphics data is parsed from the PDU and the graphics data is encapsulated in a rule negotiated with the playback client.
  • the step of sending the graphic data to the playing client by using a preset data output rule comprises:
  • the playback server After waiting for the first preset time, the playback server outputs data to the playback client;
  • the playback server If the n-speed is required to be quickly browsed, the playback server outputs data to the playback client after waiting for the second preset time, where the second preset time is less than the first preset time, and n is greater than or equal to 1 ;
  • the method further includes:
  • the step of the playing server establishing a connection with the playing client comprises:
  • the embodiment of the invention further provides a playback server for playing back RDP protocol data, including:
  • Obtaining a module configured to acquire graphic data to be played back, wherein the graphic data is converted by RDP protocol data;
  • the sending module is configured to send the graphic data to the playing client according to a preset data output rule, and the received graphic data is displayed by the playing client.
  • the obtaining module is further configured to: read a PDU of the RDP and a timestamp of the PDU transmission; determine, according to the type of the PDU, whether the data transmitted by the PDU is graphic data; if not, discard; if yes, The graphics data is parsed from the PDU, and the graphics data is encapsulated in a rule negotiated with the playback client.
  • the sending module is further configured to: if the normal speed playing is preset, wait for the first preset time, and output data to the playing client; if the preset needs n times speed to quickly browse, wait for the second After the preset time, the data is output to the playing client, where the second preset time is less than the first preset time, and n is greater than or equal to 1; if a preset step is required to see the details of the user operation, Then output a data to the playback client and stop outputting until receiving The next single step instruction.
  • the play server further includes:
  • the negotiation module is configured to establish a connection with the play client and negotiate the data output rule with the play server.
  • the embodiment of the invention further provides a system for playing back RDP protocol data, comprising: a playing client, a playing server, and a playing controller for controlling the playing client and the playing server, wherein:
  • the playing server is the playing server according to any one of claims 6-10;
  • the play controller is further configured to send a play command to the play server to control the start and stop and speed of the play.
  • the RDP protocol data playback method, server and system provided by the present invention the playing server acquires graphic data to be played back; and the graphic data is sent to the playing client according to a preset data output rule, and the playing client is
  • the terminal displays the received graphic data, and the solution can convert the acquired RDP protocol data into an image stream and the image can be played at normal speed, fast play, pause at a specified position, etc., avoiding specific protocol parsing to realize image stream reconstruction. , to meet the needs of image auditing.
  • FIG. 5 is a schematic diagram of functional modules of a second embodiment of a playback server for playing back RDP protocol data according to the present invention.
  • the play controller is further configured to send a play command to the play server to control the start and stop and speed of the play.
  • the obtained RDP protocol data is required, and the intercepted RDP protocol data has a certain format requirement. Since the image is time-conceptual, a simple data stream cannot reconstruct the image. Therefore, the intercepted RDP protocol data needs to have two elements: the protocol data unit (PDU) of the RDP and the time when the PDU is transmitted.
  • PDU protocol data unit
  • the PDU is a plaintext that satisfies the requirements of the RDP protocol and is not encrypted by the SSL protocol or the RDP encryption protocol.
  • the interception scheme of the RDP protocol data is not specifically limited.
  • the interception may be performed by inserting a gateway in the process of the user accessing the server, or may be converted by the network packet capture tool.
  • the system architecture involved in the solution of the present invention includes: a playback client, a playback server, a playback controller, and stored data. among them:
  • the playback controller, the playback client and the player server may exist in one process, or may be divided into two or more processes on the same host, or distributed through the network. Connected on both hosts.
  • the playback server can serve as a pre-launch service for many playback clients, or it can be started by the playback controller specifically for a playback client service.
  • the playback client negotiates with the playback server protocol:
  • the playback client interacts with the playback server to graph data:
  • the playback server After completing the protocol negotiation phase, the playback server begins to read the stored graphics data.
  • the detailed process is as follows:
  • the play server reads the timestamp of a PDU and response.
  • the PDU needs to be processed in response.
  • Image data needs to be resolved from the original PDU and then encapsulated according to the negotiated rules with the playback client.
  • Step S101 the play server acquires graphic data to be played back, and the graphic data is converted by RDP protocol data;
  • the data storage method is not limited, and may exist as a file or in a binary manner in a database.
  • the data storage method is not limited, and may exist as a file or in a binary manner in a database.
  • the playback client negotiates with the playback server protocol:

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

La présente invention concerne un procédé, un serveur et un système de lecture de données de protocole de bureau à distance (RDP). Le procédé comprend les étapes consistant : à obtenir, par un serveur de lecture, des données d'image à lire, les données d'image étant converties à partir des données RDP ; et à transmettre, selon une règle de sortie de données prédéfinie, les données d'image à un côté client de lecture pour permettre au côté client de lecture d'afficher les données d'image reçues. La présente invention peut convertir des données RDP acquises en un flux d'images, qui peut être lu à vitesse normale ou à vitesse rapide, ou suspendu à une position déterminée, ce qui évite une analyse de protocole spécifique pour réaliser la reconstruction du flux d'images, et satisfait un besoin dans une vérification d'image.
PCT/CN2016/079192 2015-08-06 2016-04-13 Procédé, serveur et système de lecture de données de rdp WO2017020607A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510479214.6 2015-08-06
CN201510479214.6A CN106453202A (zh) 2015-08-06 2015-08-06 Rdp协议数据回放方法、服务器及系统

Publications (1)

Publication Number Publication Date
WO2017020607A1 true WO2017020607A1 (fr) 2017-02-09

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PCT/CN2016/079192 WO2017020607A1 (fr) 2015-08-06 2016-04-13 Procédé, serveur et système de lecture de données de rdp

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CN (1) CN106453202A (fr)
WO (1) WO2017020607A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107948572A (zh) * 2017-11-21 2018-04-20 深圳竹云科技有限公司 一种协议级录屏回放方法
CN114390355A (zh) * 2021-12-10 2022-04-22 阿里巴巴（中国）有限公司 协议数据的回放方法及电子设备
CN117827740A (zh) * 2024-03-05 2024-04-05 上海特高信息技术有限公司 一种基于fpga的模块化行情数据回放方法及回放系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848214A (zh) * 2010-04-30 2010-09-29 南京德讯信息系统有限公司 基于rdp审计数据的任意定位回放方法及系统
CN102752570A (zh) * 2012-07-30 2012-10-24 德讯科技股份有限公司 Rdp协议基于动态矩形区域分块的回显缩放方法及系统
US20130283171A1 (en) * 2012-03-28 2013-10-24 Skytap Methods and systems for an intermediate graphical desktop sharing protocol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848214A (zh) * 2010-04-30 2010-09-29 南京德讯信息系统有限公司 基于rdp审计数据的任意定位回放方法及系统
US20130283171A1 (en) * 2012-03-28 2013-10-24 Skytap Methods and systems for an intermediate graphical desktop sharing protocol
CN102752570A (zh) * 2012-07-30 2012-10-24 德讯科技股份有限公司 Rdp协议基于动态矩形区域分块的回显缩放方法及系统

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107948572A (zh) * 2017-11-21 2018-04-20 深圳竹云科技有限公司 一种协议级录屏回放方法
CN114390355A (zh) * 2021-12-10 2022-04-22 阿里巴巴（中国）有限公司 协议数据的回放方法及电子设备
CN117827740A (zh) * 2024-03-05 2024-04-05 上海特高信息技术有限公司 一种基于fpga的模块化行情数据回放方法及回放系统
CN117827740B (zh) * 2024-03-05 2024-05-14 上海特高信息技术有限公司 一种基于fpga的模块化行情数据回放方法及回放系统

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