CN110557319B - Message processing method and device based on video network - Google Patents

Message processing method and device based on video network Download PDF

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Publication number
CN110557319B
CN110557319B CN201910804686.2A CN201910804686A CN110557319B CN 110557319 B CN110557319 B CN 110557319B CN 201910804686 A CN201910804686 A CN 201910804686A CN 110557319 B CN110557319 B CN 110557319B
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video
message
video networking
network
tunnel
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CN110557319A (en
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王俊峰
沈军
王艳辉
杨春晖
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Hainan Shilian Communication Technology Co.,Ltd.
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Visionvera Information Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08Protocols for interworking; Protocol conversion

Abstract

The application provides a message processing method and device based on a video network. When an internet message needs to be sent to the video network, determining a virtual interface of a video network tunnel based on a kernel protocol stack of the video network; calling a packet sending function corresponding to the virtual interface of the tunnel of the video networking; converting the internet message into a video networking message based on a packet sending function; and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem. According to the method and the device, a visual networking tunnel virtual interface compatible with the processing logic of the linux system can be created in advance without the help of a vlan interface, so that an internet message can be converted into the visual networking message by using a packet sending function corresponding to the visual networking tunnel virtual interface, and therefore the linux system and the vlan interface are not associated, the configuration complexity and the processing logic complexity are reduced, the difficulty in understanding the logic of the technology by a computer and technical personnel is reduced, and the later-stage research, development, updating, maintenance and other work is facilitated.

Description

Message processing method and device based on video network
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a method and an apparatus for processing a packet based on a video network.
Background
When messages are sent between two different networks, forwarding devices for carrying the two different networks need to be arranged between the two different networks, and then the messages are mutually forwarded between the two different networks according to the forwarding devices.
However, forwarding devices bearing two different networks need to convert headers of the messages before forwarding the messages, and a vlan interface is needed to be used for converting the headers of the messages, so that related data of the vlan interface needs to be configured in a kernel mode of the forwarding device, which results in higher configuration complexity of the forwarding device and is not beneficial to later maintenance and updating.
Disclosure of Invention
In order to solve the above problems, the present application shows a message processing method and device based on a video network.
In a first aspect, the present application shows a method for processing a packet based on a video network, where the method includes:
when an internet message needs to be sent to the video network, determining a virtual interface of a video network tunnel based on a kernel protocol stack of the video network;
calling a packet sending function corresponding to the virtual interface of the video networking tunnel;
converting the internet message into a video internet message based on the packet sending function;
and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem.
In an optional implementation manner, the invoking of the packet sending function corresponding to the virtual interface of the internet of view tunnel includes:
and searching a packet sending function corresponding to the virtual interface of the tunnel of the video networking in the mapping relation between the interface and the packet sending function.
In an optional implementation manner, the determining, by the kernel protocol stack based on the cat view, a virtual interface of a tunnel of the internet of view includes:
acquiring the routing forwarding information and/or bridge forwarding information of the internet message based on a kernel protocol stack of the cat;
and acquiring the virtual interface of the video networking tunnel recorded in the routing forwarding information and/or the bridge forwarding information.
In an optional implementation, the method further includes:
receiving a video networking message obtained through a video networking physical interface of the video networking cat based on a kernel mode packet receiving function;
converting the received video networking message into an internet message based on a video networking packet receiving function of the video networking cat;
modifying a receiving interface of the received video network message into the virtual interface of the video network tunnel;
and submitting the converted internet message to a kernel protocol stack of the cat viewing and connecting for processing.
In a second aspect, the present application shows a message processing apparatus based on a video network, where the apparatus includes:
the determining module is used for determining a virtual interface of a tunnel of the video networking based on a kernel protocol stack of the video networking when the internet message needs to be sent to the video networking;
the calling module is used for calling the packet sending function corresponding to the virtual interface of the video networking tunnel;
the first conversion module is used for converting the internet message into a video internet message based on the packet sending function;
and the sending module is used for calling a kernel-mode packet sending function and sending the video networking message through a video networking physical interface of the video networking modem.
In an optional implementation manner, the calling module is specifically configured to: and searching a packet sending function corresponding to the virtual interface of the tunnel of the video networking in the mapping relation between the interface and the packet sending function.
In an optional implementation manner, the determining module includes:
the first acquisition unit is used for acquiring the routing forwarding information and/or the bridge forwarding information of the internet message based on a kernel protocol stack of the cat;
and the second acquisition unit is used for acquiring the virtual interface of the video networking tunnel recorded in the routing forwarding information and/or the bridge forwarding information.
In an optional implementation, the apparatus further comprises:
the receiving module is used for receiving the video networking message obtained through the video networking physical interface of the video networking cat based on the kernel-mode packet receiving function;
the second conversion module is used for converting the received video networking message into an Internet message based on a video networking packet receiving function of the video networking modem;
the modification module is used for modifying a receiving interface of the received video networking message into the video networking tunnel virtual interface;
and the submitting module is used for submitting the converted internet message to a kernel protocol stack of the cat viewing system for processing.
In a third aspect, the present application shows an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the processor implements the method for processing messages based on the video network according to the first aspect.
In a fourth aspect, the present application shows a computer-readable storage medium having stored thereon a computer program for causing a processor to execute the method for internet of things based message processing according to the first aspect.
The application includes the following advantages:
when the internet message needs to be sent to the video network, because the device in the video network can identify the video network message and cannot identify the internet message, before sending, the internet message needs to be converted into the video network message, and then the video network message is sent to the video network, and the entity contents between the video network message and the internet message are the same, only the contents in the header are different, so that the internet message is sent through the video network.
However, in the prior art, the vlan interface needs to be borrowed to convert the internet message into the video networking message, so that the vlan interface is occupied, which causes that a service which usually needs to use the vlan interface cannot be normally performed, that is, a normal flow of the vlan interface is damaged.
Secondly, the linux system is associated with the vlan interface, so that the configuration complexity is increased, the processing logic is more complex, the difficulty in understanding the logic of the technology by a computer and a technician is increased, and the subsequent research, development, update, maintenance and other work are inconvenient.
However, in the application, when an internet message needs to be sent to the internet of view, a virtual interface of a tunnel of the internet of view is determined based on a kernel protocol stack of the internet of view; calling a packet sending function corresponding to the virtual interface of the tunnel of the video networking; converting the internet message into a video networking message based on a packet sending function; and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem.
According to the method and the device, a visual networking tunnel virtual interface compatible with the processing logic of the linux system can be created in advance without the help of a vlan interface, so that an internet message can be converted into the visual networking message by using a packet sending function corresponding to the visual networking tunnel virtual interface, and therefore the linux system and the vlan interface are not associated, the configuration complexity and the processing logic complexity are reduced, the difficulty in understanding the logic of the technology by a computer and technical personnel is reduced, and the later-stage research, development, updating, maintenance and other work is facilitated.
Drawings
FIG. 1 is a networking schematic of a video network of the present invention.
Fig. 2 is a schematic diagram of a hardware structure of a node server according to the present invention.
Fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention.
Fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention.
Fig. 5 is a flowchart illustrating steps of a message processing method based on a video network according to the present application.
Fig. 6 is a flowchart illustrating steps of a message processing method based on a video network according to the present application.
Fig. 7 is a block diagram of a message processing apparatus based on a video network according to the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved the traditional Ethernet (Ethernet) to face the potentially huge first video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the incoming data packet of the CPU module 304 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues and may include two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 308 is configured by the CPU module 304, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
DA SA Reserved Payload CRC
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
DA SA Reserved label (R) Payload CRC
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Referring to fig. 5, a flowchart illustrating steps of a message processing method based on a video network according to the present application is shown, where the method is applied to a cat, where the cat includes a gateway device between the internet and the video network, and the method specifically includes the following steps:
in step S101, when an internet message needs to be sent to the internet, a virtual interface of a tunnel of the internet is determined based on a kernel protocol stack of the internet;
in the application, a virtual interface of the video network tunnel may be created in advance, for example, the virtual interface of the video network tunnel may be created based on a registration interface function of a lunux kernel state, so that the internet packet may be converted into the video network packet based on the virtual interface of the video network tunnel.
The method comprises the steps that routing forwarding information and/or bridge forwarding information of internet messages can be obtained based on a kernel protocol stack of the cat; the method comprises the steps of obtaining a source address and the like of an internet message based on a kernel protocol stack of the modem, obtaining routing forwarding information and/or bridge forwarding information of the internet message according to the source address of the internet message, wherein a virtual interface of a video network tunnel is recorded in the routing forwarding information and/or the bridge forwarding information of the internet message, and thus, the virtual interface of the video network tunnel recorded in the routing forwarding information and/or the bridge forwarding information can be obtained.
Further, after the video networking tunnel virtual interface is created, the linux may allocate a storage space for the video networking tunnel virtual interface, so that the configuration information of the user state of the linux may be acquired, and then the configuration information of the user state of the linux is stored in the storage space of the video networking tunnel virtual interface, so as to implement setting tunnel information for the video networking tunnel virtual interface and associating the user state of the linux with the video networking virtual tunnel information.
In step S102, a packet sending function corresponding to the virtual interface of the tunnel of the video networking is called;
in the application, after the virtual interface of the video network tunnel is created in advance, a processing function, such as a packet sending function, may be registered in the virtual interface of the video network tunnel, so that when a packet needs to be sent to the video network via the virtual tunnel of the video network, the packet sending function corresponding to the virtual interface of the video network tunnel needs to be used to send the packet to the video network via the virtual tunnel of the video network.
Since there may be many different packet functions, and the different packet functions act on different interfaces, in order to distinguish the different packet functions and the interfaces on which the different packet functions act, in the present application, after the packet function is registered, the packet function and the tunnel virtual interface of the video network may be stored in the mapping relationship between the interfaces and the packet function.
In this way, in this step, the packet sending function corresponding to the tunnel virtual interface of the video networking can be searched in the mapping relationship between the interface and the packet sending function.
In step S103, converting the internet message into a video internet message based on a packet forwarding function;
in the application, a video networking message header can be added to the internet message, so that the video networking message is obtained.
In step S104, a kernel-mode packet sending function is called to send the internet-of-view message through the internet-of-view physical interface of the internet-of-view modem.
When the internet message needs to be sent to the video network, because the device in the video network can identify the video network message but cannot identify the internet message, before sending, the internet message needs to be converted into the video network message, and then the video network message is sent to the video network, and the physical content between the video network message and the internet message is the same, only the content in the header is different, so that the internet message is sent through the video network.
However, in the prior art, the vlan interface needs to be borrowed to convert the internet message into the video networking message, so that the vlan interface is occupied, which causes that a service which usually needs to use the vlan interface cannot be normally performed, that is, a normal flow of the vlan interface is damaged.
Secondly, the linux system is associated with the vlan interface, so that the configuration complexity is increased, the processing logic is more complex, the difficulty in understanding the logic of the technology by a computer and a technician is increased, and the subsequent research, development, update, maintenance and other work are inconvenient.
However, in the application, when an internet message needs to be sent to the internet of view, a virtual interface of a tunnel of the internet of view is determined based on a kernel protocol stack of the internet of view; calling a packet sending function corresponding to the virtual interface of the tunnel of the video networking; converting the internet message into a video networking message based on a packet sending function; and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem.
According to the method and the device, a visual networking tunnel virtual interface compatible with the processing logic of the linux system can be created in advance without the help of a vlan interface, so that an internet message can be converted into the visual networking message by using a packet sending function corresponding to the visual networking tunnel virtual interface, and therefore the linux system and the vlan interface are not associated, the configuration complexity and the processing logic complexity are reduced, the difficulty in understanding the logic of the technology by a computer and technical personnel is reduced, and the later-stage research, development, updating, maintenance and other work is facilitated.
Correspondingly, the cat may also receive the internet message, and then forward the internet message in the internet, as shown in fig. 6, the specific method includes:
in step S201, a packet receiving function based on a kernel mode receives a video networking message obtained through a video networking physical interface of a video networking modem;
because the device in the internet can identify the internet message and cannot identify the video network message, before sending, the video network message needs to be converted into the internet message, and then the internet message is sent to the internet, and the physical content between the video network message and the internet message is the same, but the content in the header is different, so that the video network message is sent through the internet.
In the application, a video networking physical interface of the video networking cat can receive the video networking message, and then the video networking message obtained through the video networking physical interface of the video networking cat can be received based on a kernel-mode packet receiving function;
in this application, after creating the virtual interface of the video network tunnel in advance, a processing function, such as a packet receiving function, may be registered with the virtual interface of the video network tunnel, so that, after the physical interface of the video network is applied to the video network message, the packet receiving function corresponding to the virtual interface of the video network tunnel may be used to receive the video network message.
Since there may be many different packet receiving functions, and the different packet receiving functions act on different interfaces, in order to distinguish the interfaces that the different packet receiving functions and the different packet sending functions act on, in the present application, after the packet receiving function is registered, the packet receiving function and the tunnel virtual interface of the video network may be stored in the mapping relationship between the interfaces and the packet receiving function.
Therefore, in this step, after the video network physical interface of the video network cat can receive the video network message, the video network message needs to be received based on the video network tunnel virtual interface, so that the packet receiving function corresponding to the video network tunnel virtual interface can be called, and then the video network message is received by using the packet receiving function.
In this step, the packet receiving function corresponding to the tunnel virtual interface of the video networking may be searched in the mapping relationship between the interface and the packet receiving function.
In step S202, the received internet of view message is converted into an internet message based on the internet of view packet receiving function of the internet of view;
in the application, the video networking message header on the internet message can be removed, so that the internet message is obtained, the entity content in the video networking message is the same as that in the internet message, and the message header is different.
In step S203, modifying the receiving interface of the received video network packet into a video network tunnel virtual interface;
the device for informing the receiving of the internet message is convenient to determine the route forwarding information and/or the bridge forwarding information of the internet message according to the virtual interface of the tunnel of the internet of the view network so as to ensure that the internet message can be normally forwarded.
In step S204, the internet packet obtained by conversion is submitted to the kernel protocol stack of the union cat for processing.
And then forwarding the internet message according to the kernel protocol stack of the modem.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 7, a block diagram of a message processing apparatus based on a video network according to the present application is shown, where the apparatus may specifically include the following modules:
the determining module 11 is configured to determine a virtual interface of a tunnel of the internet based on a kernel protocol stack of the modem when the internet message needs to be sent to the internet;
the calling module 12 is configured to call a packet sending function corresponding to the virtual interface of the video networking tunnel;
a first conversion module 13, configured to convert the internet message into a video internet message based on the packet forwarding function;
and the sending module 14 is configured to call a kernel-mode packet sending function and send the internet-of-video message through an internet-of-video physical interface of the internet-of-video modem.
In an optional implementation manner, the invoking module 12 is specifically configured to: and searching a packet sending function corresponding to the virtual interface of the tunnel of the video networking in the mapping relation between the interface and the packet sending function.
In an optional implementation manner, the determining module 11 includes:
the first acquisition unit is used for acquiring the routing forwarding information and/or the bridge forwarding information of the internet message based on a kernel protocol stack of the cat;
and the second acquisition unit is used for acquiring the virtual interface of the video networking tunnel recorded in the routing forwarding information and/or the bridge forwarding information.
In an optional implementation, the apparatus further comprises:
the receiving module is used for receiving the video networking message obtained through the video networking physical interface of the video networking cat based on the kernel-mode packet receiving function;
the second conversion module is used for converting the received video networking message into an Internet message based on a video networking packet receiving function of the video networking modem;
the modification module is used for modifying a receiving interface of the received video networking message into the video networking tunnel virtual interface;
and the submitting module is used for submitting the converted internet message to a kernel protocol stack of the cat viewing system for processing.
When the internet message needs to be sent to the video network, because the device in the video network can identify the video network message and cannot identify the internet message, before sending, the internet message needs to be converted into the video network message, and then the video network message is sent to the video network, and the entity contents between the video network message and the internet message are the same, only the contents in the header are different, so that the internet message is sent through the video network.
However, in the prior art, the vlan interface needs to be borrowed to convert the internet message into the video networking message, so that the vlan interface is occupied, which causes that a service which usually needs to use the vlan interface cannot be normally performed, that is, a normal flow of the vlan interface is damaged.
Secondly, the linux system is associated with the vlan interface, so that the configuration complexity is increased, the processing logic is more complex, the difficulty in understanding the logic of the technology by a computer and a technician is increased, and the subsequent research, development, update, maintenance and other work are inconvenient.
However, in the application, when an internet message needs to be sent to the internet of view, a virtual interface of a tunnel of the internet of view is determined based on a kernel protocol stack of the internet of view; calling a packet sending function corresponding to the virtual interface of the tunnel of the video networking; converting the internet message into a video networking message based on a packet sending function; and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem.
According to the method and the device, a visual networking tunnel virtual interface compatible with the processing logic of the linux system can be created in advance without the help of a vlan interface, so that an internet message can be converted into the visual networking message by using a packet sending function corresponding to the visual networking tunnel virtual interface, and therefore the linux system and the vlan interface are not associated, the configuration complexity and the processing logic complexity are reduced, the difficulty in understanding the logic of the technology by a computer and technical personnel is reduced, and the later-stage research, development, updating, maintenance and other work is facilitated.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The application also shows an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method and apparatus for processing messages based on the video network as shown in fig. 1 and 2 are implemented.
The present application also shows a computer-readable storage medium having a computer program stored thereon, where the computer program enables a processor to execute the message processing method and apparatus based on the video network shown in fig. 1 and 2.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of 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, embodiments of 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.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (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 terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, 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 terminal 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 terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal that comprises the element.
The message processing method and device based on the video network provided by the invention are introduced in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the above embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A message processing method based on video network is characterized in that the method comprises the following steps:
creating a virtual interface of a tunnel of a video network;
when an internet message needs to be sent to a video network, determining a virtual interface of a video network tunnel based on a kernel protocol stack of a video modem;
calling a packet sending function corresponding to the virtual interface of the video networking tunnel;
converting the internet message into a video internet message based on the packet sending function;
and calling a packet sending function in a kernel mode to send the video networking message through a video networking physical interface of the video networking modem.
2. The method according to claim 1, wherein the calling the packet-sending function corresponding to the virtual interface of the internet of vision tunnel comprises:
and searching a packet sending function corresponding to the virtual interface of the tunnel of the video networking in the mapping relation between the interface and the packet sending function.
3. The method of claim 1, wherein determining the VIT tunnel virtual interface based on the VIT kernel protocol stack comprises:
acquiring the routing forwarding information and/or bridge forwarding information of the internet message based on a kernel protocol stack of the cat;
and acquiring the virtual interface of the video networking tunnel recorded in the routing forwarding information and/or the bridge forwarding information.
4. The method of claim 1, further comprising:
receiving a video networking message obtained through a video networking physical interface of the video networking cat based on a kernel mode packet receiving function;
converting the received video networking message into an internet message based on a video networking packet receiving function of the video networking cat;
modifying a receiving interface of the received video network message into the virtual interface of the video network tunnel;
and submitting the converted internet message to a kernel protocol stack of the cat viewing and connecting for processing.
5. A message processing apparatus based on video network, the apparatus comprising:
the determining module is used for creating a virtual interface of the video networking tunnel;
the determining module is further configured to determine a virtual interface of the video networking tunnel based on a kernel protocol stack of the modem when an internet message needs to be sent to the video networking;
the calling module is used for calling the packet sending function corresponding to the virtual interface of the video networking tunnel;
the first conversion module is used for converting the internet message into a video internet message based on the packet sending function;
and the sending module is used for calling a kernel-mode packet sending function and sending the video networking message through a video networking physical interface of the video networking modem.
6. The apparatus of claim 5, wherein the invoking module is specifically configured to: and searching a packet sending function corresponding to the virtual interface of the tunnel of the video networking in the mapping relation between the interface and the packet sending function.
7. The apparatus of claim 5, wherein the determining module comprises:
the first acquisition unit is used for acquiring the routing forwarding information and/or the bridge forwarding information of the internet message based on a kernel protocol stack of the cat;
and the second acquisition unit is used for acquiring the virtual interface of the video networking tunnel recorded in the routing forwarding information and/or the bridge forwarding information.
8. The apparatus of claim 5, further comprising:
the receiving module is used for receiving the video networking message obtained through the video networking physical interface of the video networking cat based on the kernel-mode packet receiving function;
the second conversion module is used for converting the received video networking message into an Internet message based on a video networking packet receiving function of the video networking modem;
the modification module is used for modifying a receiving interface of the received video networking message into the video networking tunnel virtual interface;
and the submitting module is used for submitting the converted internet message to a kernel protocol stack of the cat viewing system for processing.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for internet-of-view based message processing according to any one of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, having stored thereon a computer program for causing a processor to execute the method for internet-of-view based message processing according to any one of claims 1 to 4.
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