CN111371913B - Method for acquiring media IP MAC address and intelligent terminal - Google Patents
Method for acquiring media IP MAC address and intelligent terminal Download PDFInfo
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- CN111371913B CN111371913B CN202010108130.2A CN202010108130A CN111371913B CN 111371913 B CN111371913 B CN 111371913B CN 202010108130 A CN202010108130 A CN 202010108130A CN 111371913 B CN111371913 B CN 111371913B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
Abstract
The invention discloses a method and an intelligent terminal for acquiring a media IP MAC address, wherein the method comprises the following steps: the host computer obtains the IP address of the target media through the signaling sent by the main control board; the host sends the contents of the grouped ARP request packet as the static load of a special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends the static load out through the network port; the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts processing by using a response function of the ARP from the static load of the special indication packet, and the MAC address of the target media IP is obtained from the ARP response packet; the host searches in the ARP table and updates the IP and MAC information to the ARP table. The invention realizes the purpose that the host acquires the MAC address of the target media IP which is issued by the main control board according to the signaling negotiation.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a method for acquiring a media IP MAC address and an intelligent terminal.
Background
In a VoIP (Voice over Internet Protocol), which is a Voice call technology for achieving a Voice call and a multimedia conference through an Internet Protocol, that is, performing communication through the Internet, a Voice codec is performed by a digital signal processor controlled by a host. The host and the digital signal processor communicate through an ethernet/pci interface. In the application of separating signaling IP and media IP, a CPU with weak performance is used to realize the host function of controlling digital signal processor and the processing function of some single-board management messages, and the external network port is hung on the digital signal processor, and the media stream is directly sent and received by the digital signal processor. The digital signal processor does not have the processing capacity of a tcp/ip three-layer, and only has the capacity of unpacking and unpacking according to the information of the package of the tcp/ip two-layer and the tcp/ip three-layer of the channel level sent by the host. The host side does not go out of the internet access (the processing chip and the digital signal processor of the host are both CPUs, the host side does not go out of the internet access, namely the CPU of the host does not hook the internet access chip, and the internet access chip is hooked at the digital signal processor side), and the problem to be solved is that the host acquires the MAC address of the target media IP issued by the main control board according to the signaling negotiation. Only if the host issues IP two-layer and three-layer header information (IP and MAC headers) to the dsp, the dsp knows how to unpack the packets and verify the validity of the received packets. If the digital signal processor is out of the network port, the RTP packet is directly sent and received from the network port of the digital signal processor, so that the forwarding of a host CPU is omitted, and the processing efficiency of the packet is improved. The host knows the target media IP through the signaling of the main control board, and the host can not go out of the network port used for transmitting media stream externally, and the host needs a special method to complete the learning process of the MAC address through the digital signal processor.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The present invention mainly aims to provide a method, an intelligent terminal and a storage medium for acquiring a media IP MAC address, and aims to solve the above-mentioned defects in the prior art.
In order to achieve the above object, the present invention provides a method for acquiring a MAC address of a media IP, including the steps of:
the host computer obtains the IP address of the target media through the signaling sent by the main control board;
the host sends the contents of the grouped ARP request packet as the static load of a special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends the static load out through the network port;
the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts processing by using a response function of the ARP from the static load of the special indication packet, and the MAC address of the target media IP is obtained from the ARP response packet;
the host searches in the ARP table and updates the IP and MAC information to the ARP table.
If there is a MAC instruction to obtain the same target media IP subsequently, can obtain from ARP table directly; and repeating the MAC address operation every 5 minutes for the target media IP recorded in the whole ARP table, so as to prevent the aging of the MAC address.
Optionally, in the method for acquiring a MAC address of a media IP, the main control board communicates with the host through an HDLC.
Optionally, in the method for acquiring a MAC address of a media IP, the host and the digital signal processor communicate with each other through a PCI interface.
Optionally, the method for obtaining a MAC address of a media IP further includes:
and the host sends the packet of the packet type which is received by the digital signal processor monitoring network port and accords with the configuration to the host for processing through a special indication packet.
Optionally, the method for obtaining a MAC address of a media IP further includes:
and the host sends the group packet content of ARP to the digital signal processor by using the special command packet, and controls the digital signal processor to send the group packet content of ARP in the special command out of the network port.
Optionally, the method for obtaining a MAC address of a media IP further includes:
when the host searches MAC of media IP not obtained in ARP table, the host constructs the content of ARP request packet in interface according to the target media IP, and sends the content to the digital signal processor through special packet generation command, and the digital signal processor sends the content to network from network port;
the digital signal processor transfers the ARP response to the host, the host processes the ARP response packet and adds the IP and the MAC in the response to an ARP table;
the host obtains the MAC of the media IP from the ARP table.
Optionally, the method for obtaining a MAC address of a media IP further includes:
and sending the ARP request again to the target IP address in the ARP table at preset time intervals to acquire a new MAC address.
Optionally, in the method for acquiring a MAC address of a media IP, the preset time is 5 minutes.
In addition, to achieve the above object, the present invention further provides an intelligent terminal, wherein the intelligent terminal includes: the device comprises a memory, a processor and a program stored on the memory and capable of running on the processor, wherein the program for acquiring the MAC address of the media IP realizes the steps of the method for acquiring the MAC address of the media IP as described above when being executed by the processor.
In addition, to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores a program for acquiring a MAC address of a media IP, and the program for acquiring a MAC address of a media IP is executed by a processor to implement the steps of the method for acquiring a MAC address of a media IP as described above.
The invention obtains the IP address of the target media through the signaling sent by the main control board through the host; the host sends the contents of the grouped ARP request packet as the static load of a special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends the static load out through the network port; the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts processing by using a response function of the ARP from the static load of the special indication packet, and the MAC address of the target media IP is obtained from the ARP response packet; the host searches in the ARP table and updates the IP and MAC information to the ARP table. The invention realizes the communication between the boards through the main control board and the host, and the host and the digital signal processor communicate through the PCI interface, thereby realizing the purpose that the host acquires the MAC address of the target media IP issued by the main control board according to the signaling negotiation.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a method of obtaining a MAC address of a media IP according to the invention;
FIG. 2 is a schematic diagram of the communication connection relationship between the host, the main control board and the DSP according to the preferred embodiment of the method for acquiring the MAC address of the media IP;
fig. 3 is a schematic operating environment diagram of an intelligent terminal according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the method for acquiring a MAC address of a media IP according to a preferred embodiment of the present invention includes the following steps:
step S10, the host computer gets the target media IP address through the signaling sent by the main control board;
step S20, the host sends the content of the ARP request packet as the dead load of the special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends out the dead load through the network port;
step S30, the digital signal processor receives the ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts from the dead load of the special indication packet, and processes the packet by using the response function of the ARP, and obtains the MAC address of the target media IP from the ARP response packet;
step S40, the host searches in the ARP table and updates the IP and MAC information to the ARP table.
Specifically, as shown in fig. 2, in the scheme of separating the signaling IP and the media IP, the main control board is responsible for processing the call signaling, the host of the media board is responsible for the function of single board management and the operation of the media resource, and the host needs to complete the configuration control function of the digital signal processor in the resource operation. The main Control board realizes inter-board communication with the host through an HDLC (High-Level Data Link Control), the host and the digital signal processor communicate through a PCI (Peripheral Component Interconnect) interface, and the external network port is hung on the digital signal processor.
Wherein, the call signaling is the sip (session Initiation protocol) protocol, i.e. the session Initiation protocol, which is the multimedia communication protocol established by IETF (Internet Engineering Task Force); it is a text-based application-layer control protocol for creating, modifying and releasing sessions of one or more participants; the SIP is an IP voice session control protocol originated from the Internet, and has the characteristics of flexibility, easiness in implementation, convenience in expansion and the like. SIP is an application-layer signaling control protocol for creating, modifying and releasing sessions of one or more participants, which may be Internet multimedia conferencing, IP telephony, or multimedia distribution, and the participants of the sessions may communicate via multicast (multicast), mesh unicast (unicast), or a mixture of both.
The HDLC is an international standard for link layer protocols, and is used to implement resource sharing and information interaction between remote users. The HDLC protocol is used to ensure that the data transmitted to the next layer can be received accurately during transmission, i.e. without any loss in error release and in correct sequence. Another important function of the HDLC protocol is flow control, i.e. the transmission can take place immediately upon receipt of data by the receiving end.
Among them, PCI is the most widely used interface in personal computers at present, and almost all motherboard products have such slots. PCI slots are also the types of the main board with the most number of slots, on the current popular desktop main board, the main board of an ATX structure is generally provided with 5-6 PCI slots, and a smaller MATX main board is also provided with 2-3 PCI slots, so that the application universality is seen.
Furthermore, the host is responsible for the functions of board management and the operation of media resources, for example, the digital signal processor supports 256 paths of encoding and decoding channels, and each path has a resource control block to record the use condition of resources, such as unallocated and allocated states; the unallocated resources are allocated for use, and the allocated resources are set to be in an unallocated state after the call is released; the resource operation is to send the operation command of the digital signal to control the digital signal processor to complete the functions of encoding and decoding, signal sound detection, echo cancellation, etc.
When the host needs to complete the configuration control function of the digital signal processor in the resource operation, the host controls the digital signal processor to complete the functions of coding, decoding, signal tone detection, signal tone playing, echo cancellation, VAD and the like by issuing the command level (equipment level, channel level, diagnosis level and the like), the command type (inquiry/configuration) and the function code and the command of specific function configuration parameters.
Furthermore, a special command packet (the special command packet is identified by a specific command code by encapsulating an IP packet such as ARP into a command packet for communication between the host and the digital signal processor) encapsulates the request content of the ARP and sends the ARP request packet to the digital signal processor, the digital signal processor is controlled to send the ARP request packet to the network, the special indication packet encapsulates an ARP response packet and sends the ARP response packet to the host, and the host analyzes and obtains the MAC address.
Further, the host computer obtains an instruction to acquire the MAC address of the media IP, searches from the ARP table first, and if the search is not performed as follows:
constructing the content of an ARP request packet in an interface of a SendArpRequestPkt according to a target media IP, generating a life order through a special command packet and sending the life order to a digital signal processor, and sending the life order to a network from a network port by the digital signal processor;
the digital signal processor transfers the ARP response to the host, and the host Process _ Arppkt processes an ARP response packet:
the Process _ Arppkt interface will add the IP and MAC in the response to the ARP table.
And then obtained from the ARP table.
In order to ensure that the ARP table is not aged, the target IP address in the ARP table is requested to be sent once again at intervals of 5 minutes to obtain a new MAC address.
In practice, the number of packets of the ARP request is not large, and it is feasible to transmit the packets through the communication mechanism of the host and the digital signal processor, but it is avoided that a large number of packet types are transmitted through this method.
Further, as shown in fig. 3, based on the above method for acquiring the MAC address of the media IP, the present invention also provides an intelligent terminal, which includes a processor 10, a memory 20, and a display 30. Fig. 3 shows only some of the components of the smart terminal, but it should be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The memory 20 may be an internal storage unit of the intelligent terminal in some embodiments, such as a hard disk or a memory of the intelligent terminal. The memory 20 may also be an external storage device of the Smart terminal in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the Smart terminal. Further, the memory 20 may also include both an internal storage unit and an external storage device of the smart terminal. The memory 20 is used for storing application software installed in the intelligent terminal and various data, such as program codes of the installed intelligent terminal. The memory 20 may also be used to temporarily store data that has been output or is to be output. In one embodiment, the memory 20 stores a program 40 for acquiring the MAC address of the media IP, and the program 40 for acquiring the MAC address of the media IP is executable by the processor 10, so as to implement the method for acquiring the MAC address of the media IP in the present application.
The processor 10 may be a Central Processing Unit (CPU), a microprocessor or other data Processing chip in some embodiments, and is used for running program codes stored in the memory 20 or Processing data, such as executing the method for obtaining the MAC address of the media IP.
The display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch panel, or the like in some embodiments. The display 30 is used for displaying information at the intelligent terminal and for displaying a visual user interface. The components 10-30 of the intelligent terminal communicate with each other via a system bus.
In one embodiment, when the processor 10 executes the program 40 in the memory 20 for obtaining the MAC address of the media IP, the following steps are implemented:
the host computer obtains the IP address of the target media through the signaling sent by the main control board;
the host sends the contents of the grouped ARP request packet as the static load of a special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends the static load out through the network port;
the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts processing by using a response function of the ARP from the static load of the special indication packet, and the MAC address of the target media IP is obtained from the ARP response packet;
the host searches in the ARP table and updates the IP and MAC information to the ARP table.
The main control board realizes inter-board communication with the host through the HDLC.
And the host and the digital signal processor realize communication through a PCI interface.
The method for acquiring the MAC address of the media IP further comprises the following steps:
and the host sends the packet of the packet type which is received by the digital signal processor monitoring network port and accords with the configuration to the host for processing through a special indication packet.
The method for acquiring the MAC address of the media IP further comprises the following steps:
and the host sends the group packet content of ARP to the digital signal processor by using the special command packet, and controls the digital signal processor to send the group packet content of ARP in the special command out of the network port.
The method for acquiring the MAC address of the media IP further comprises the following steps:
when the host searches MAC of media IP not obtained in ARP table, the host constructs the content of ARP request packet in interface according to the target media IP, and sends the content to the digital signal processor through special packet generation command, and the digital signal processor sends the content to network from network port;
the digital signal processor transfers the ARP response to the host, the host processes the ARP response packet and adds the IP and the MAC in the response to an ARP table;
the host obtains the MAC of the media IP from the ARP table.
The method for acquiring the MAC address of the media IP further comprises the following steps:
and sending the ARP request again to the target IP address in the ARP table at preset time intervals to acquire a new MAC address.
The preset time is 5 minutes.
The present invention also provides a storage medium, wherein the storage medium stores a program for acquiring a MAC address of a media IP, and the program for acquiring a MAC address of a media IP is executed by a processor to implement the steps of the method for acquiring a MAC address of a media IP as described above.
In summary, the present invention provides a method, an intelligent terminal and a storage medium for acquiring a MAC address of a media IP, where the method includes: the host computer obtains the IP address of the target media through the signaling sent by the main control board; the host sends the contents of the grouped ARP request packet as the static load of a special command packet to the digital signal processor according to the destination media IP address, and the digital signal processor receives the special command packet and sends the static load out through the network port; the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts processing by using a response function of the ARP from the static load of the special indication packet, and the MAC address of the target media IP is obtained from the ARP response packet; the host searches in the ARP table and updates the IP and MAC information to the ARP table. The invention realizes the communication between the boards through the main control board and the host, and the host and the digital signal processor communicate through the PCI interface, thereby realizing the purpose that the host acquires the MAC address of the target media IP issued by the main control board according to the signaling negotiation.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A method for acquiring a media IP MAC address, the method comprising:
the host computer obtains the IP address of the target media through the signaling sent by the main control board;
the host sends the content of the grouped ARP request packet to the digital signal processor as the payload of a special command packet according to the target media IP address, and the digital signal processor receives the special command packet and sends the payload out through the network port;
the digital signal processor receives an ARP response packet from the network port, and sends the ARP response packet to the host through the special indication packet, the host starts from the payload of the special indication packet and processes the special indication packet by using a response function of the ARP, and the MAC address of the target media IP is obtained from the ARP response packet;
the host searches in the ARP table and updates the IP and MAC information to the ARP table.
2. The method of claim 1, wherein the main control board communicates with the host via HDLC.
3. The method of claim 1, wherein the host and the dsp communicate via a PCI interface.
4. The method of claim 1, wherein the method of obtaining the MAC address of the media IP further comprises:
and the host sends the group packet content of ARP to the digital signal processor by using the special command packet, and controls the digital signal processor to send the group packet content of ARP in the special command out of the network port.
5. The method of claim 1, wherein the method of obtaining the MAC address of the media IP further comprises:
when the host searches MAC of media IP not obtained in ARP table, the host constructs the content of ARP request packet in interface according to the target media IP, and sends the content to the digital signal processor through special packet generation command, and the digital signal processor sends the content to network from network port;
the digital signal processor transfers the ARP response to the host, the host processes the ARP response packet and adds the IP and the MAC in the response to an ARP table;
the host obtains the MAC of the media IP from the ARP table.
6. The method of claim 5, wherein the method of obtaining the MAC address of the media IP further comprises:
and sending the ARP request again to the target IP address in the ARP table at preset time intervals to acquire a new MAC address.
7. The method of claim 6, wherein the predetermined time is 5 minutes.
8. An intelligent terminal, characterized in that, intelligent terminal includes: memory, processor and program stored on the memory and executable on the processor for obtaining a MAC address of a media IP, the program for obtaining a MAC address of a media IP being executed by the processor for implementing the steps of the method for obtaining a MAC address of a media IP as claimed in any one of claims 1 to 7.
9. A storage medium storing a program for acquiring a MAC address of a media IP, the program for acquiring the MAC address of the media IP being executed by a processor to implement the steps of the method for acquiring the MAC address of the media IP as claimed in any one of claims 1 to 7.
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