CN113660111A - Method for testing external protocol stack of 4G Desk Phone - Google Patents
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004891 communication Methods 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 claims description 8
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000010998 test method Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 6
- 230000011664 signaling Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004807 localization Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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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
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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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
- H04L65/10—Architectures or entities
- H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
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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]
Abstract
The invention relates to the technical field of LTE terminals and discloses a method for testing an external protocol stack of a 4GDesk Phone, which comprises the following steps: sending a test command of a first service to a first virtual network card so that the first virtual network card sends the test command to an application server for testing, wherein the first service is bound with the first virtual network card, and the first virtual network card has an independent IP address. Has the advantages that: by adopting the technical scheme of the invention, the data channel can be simulated by establishing the virtual network card under the condition that the virtual network card cannot be connected to the operator network. The application layer can communicate with the application server through the first virtual network card, so that the test of the first service is completed.
Description
Technical Field
The invention relates to the technical field of LTE terminals, in particular to a method for testing an external protocol stack of a 4G Desk Phone.
Background
Referring to the topology diagram of the LTE terminal connected to the IMS shown in fig. 1, multiple PDN channels are generally established between the LTE terminal and the IMS core network for carrying various differentiated services. For example, an IMSPDN channel is used for bearing voice service; the SOS PDN channel is used for bearing emergency call service; the apppn channel is used to carry application layer specific services (for operator firmware, configuration unified push, etc., not counting user traffic consumption).
Currently, most LTE terminals (e.g. mobile phones) embed the IMS protocol stack in the BP chip (e.g. high-pass chip), and place the service control logic on the AP side. The IMS protocol stack is maintained by a chip manufacturer, the AP side cannot be modified, and if a terminal wants to customize some advanced services for an operator, the IMS protocol stack must be modified by the chip manufacturer according to requirements. The structure is not beneficial to IMS service expansion, so that part of terminal manufacturers select to externally arrange an IMS protocol stack to an AP side for realization.
Referring to a topological diagram of an implementation of an IMS protocol in a 4G Desk Phone shown in fig. 2 on an AP side, a plurality of virtual network cards are established on the AP side to correspond to PDN channels of a BP test one by one, and the network card on the AP side and the BP side perform data interaction through a serial port. And the AP side sends the service data to the corresponding PDN by binding a specific network card.
Although the LTE terminal using the external protocol stack solves the problem of service expansion, the external protocol stack needs to be locally tested before use, and for example, when a product produced in china is exported to the united states, the external protocol stack needs to be connected to an operator base station in the united states for security testing.
Therefore, a new method for testing the external protocol stack of the 4G Desk Phone is needed, so that the local security test can be completed without connecting with the base station of the operator outside the domain.
Disclosure of Invention
The purpose of the invention is: the method for testing the external protocol stack of the 4G Desk Phone is provided, and the local security test is completed on the premise of not needing to be connected with an operator base station outside a domain.
In order to achieve the above object, the present invention provides a method for testing an external protocol stack of a 4G Desk Phone, comprising:
sending a test command of a first service to a first virtual network card so that the first virtual network card sends the test command to an application server for testing, wherein the first service is bound with the first virtual network card, and the first virtual network card has an independent IP address.
Further, before sending the test command of the first service to the first virtual network card, the test method further includes:
sending a first command to a proxy server through a first channel so that the proxy server establishes a first virtual network card with an independent IP address according to the first command and feeds back network card establishment confirmation information after the first virtual network card is established; the first channel is a connection channel between a wireless interface layer and a proxy server, the wireless interface layer is in communication connection with an application layer, and the wireless interface layer is used for sending a first command of the application layer to the proxy server.
And after the network card establishment confirmation information is acquired, binding the first service of the application layer with the first virtual network card.
Further, the method for establishing the first channel comprises the following steps:
the wireless interface layer creates a first channel through the proxy client to connect to the proxy server.
Further, before sending the first command to the proxy server through the first channel, the testing method further includes:
and sending the first command to a wireless interface layer, so that the wireless interface layer calls a proxy client interface to judge whether the first command needs to be proxied to a proxy server or not, and if the first command needs to be proxied to the proxy server, sending the first command to the proxy server through a first channel.
Further, the proxy server establishes a first virtual network card with an independent IP address according to the first command, specifically:
and the proxy server calls the TUN/TAP module to create a first virtual network card on the basis of the entity network card according to the first command, and allocates the first virtual network card with an independent IP address.
Further, the test method further comprises:
and receiving the state information of the first virtual network card fed back by the proxy server side, and executing corresponding actions according to the state information of the first virtual network card.
Further, the state information of the first virtual network card fed back by the proxy server is specifically:
and enabling the first virtual network card to execute UP, DOWN and IP changing operations through an ifconfig command of the linux system.
The agent client monitors the operation executed by the first virtual network card and acquires the state information of the first virtual network card.
Further, the agent client monitors an operation executed by the first virtual network card, specifically:
and the proxy client monitors the operation of the first virtual network card through the netlink module.
Further, the test method further comprises:
and receiving a first message generated by the debug module fed back by the proxy client.
Compared with the prior art, the test method of the external protocol stack of the 4G Desk Phone has the beneficial effects that: by adopting the technical scheme of the invention, the data channel can be simulated by establishing the virtual network card under the condition that the virtual network card cannot be connected to the operator network. The application layer can communicate with the application server through the first virtual network card, so that the test of the first service is completed.
Drawings
Fig. 1 is a topology diagram of an LTE terminal connected to an IMS in the background of the present invention;
FIG. 2 is a topology diagram of an IMS protocol stack externally installed to an AP side in the background art of the present invention;
FIG. 3 is a schematic structural diagram of a 4G Desk Phone in an example of the present invention;
FIG. 4 is a system architecture diagram for testing the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Description of the nouns:
ims (ip Multimedia subsystem): the IP multimedia system is a communication framework, based on IP packet messages, adopts SIP session control protocol, can realize the integration of mobile and fixed networks, and is considered as the core technology of the next generation operator network.
BP (Baseband processor): and the radio frequency processor is used for providing radio frequency related functions (such as base stations, WiFi connection, data transceiving through an air interface and the like). The BP chip is usually packaged into a module, and there is a separate operating system, and the operating system corresponding to the BP chip is referred to as a BP side in this description.
AP (application processor): and the application processor is used for processing the business related logic. Such as calls, sms, etc., but the actual data traffic is typically sent out through the BP side. The AP chip also corresponds to an independent operating system, and the operating system corresponding to the AP chip is referred to as an AP side in this specification.
Ue (user equipment): a user equipment. Generally, a terminal device accessing to an IMS network, such as a mobile Phone, Smart Phone, 4G Desk Phone, etc., is referred to, and a UE generally includes an AP and a BP processor at the same time.
enodeb (evolved Node b): an evolved node B, in an IMS network, is typically referred to as an operator base station.
Pdn (public Data network): the public data network is a communication network for providing data communication service for the public.
4G Desk Phone: a kind of LTE terminal, 4G Desk Phone can register to LTE network through the 4G die set, still have wired or WiFi network card, can connect Internet directly, can register to the ordinary SIP server through Internet. The structure of 4G DeskPhone can be specifically explained by referring to the attached FIG. 3.
RIL (radio Interface layer): and the wireless interface layer is generally used for connecting the Framework and the module. And a uniform interface is provided for an application layer through a Framework, and the difference of bottom chips is shielded.
In combination with the description of the prior art in the background art, it is known that when a local test is performed by the existing 4G Desk Phone, since a home operator base station in the united states cannot be connected, an IMS message cannot be sent out through the base station, and the local test of services such as registration and call based on the IMS cannot be ensured. In order to solve the technical problem, the invention provides a testing method, which combines the characteristics of the 4G Desk Phone, utilizes the wired/WiFi network card of the 4G Desk Phone to establish a technical scheme of a plurality of virtual network cards, and realizes the IMS localization test of the 4G Desk Phone.
The invention discloses a method for testing an external protocol stack of a 4G Desk Phone, which is applied to the IMS localization test of the 4G Desk Phone and comprises the following steps:
sending a test command of a first service to a first virtual network card so that the first virtual network card sends the test command to an application server for testing, wherein the first service is bound with the first virtual network card, and the first virtual network card has an independent IP address.
In this embodiment, under the condition that the IMS signaling cannot be connected to the operator network, the data channel may be simulated by establishing the virtual network card, so that the application layer interacts data with the Internet through the virtual network card, and the IMS signaling may be tested by matching the simulation server on the Internet.
In this embodiment, before sending the test command of the first service to the first virtual network card, the test method further includes:
sending a first command to a proxy server through a first channel so that the proxy server establishes a first virtual network card with an independent IP address according to the first command and feeds back network card establishment confirmation information after the first virtual network card is established; the first channel is a connection channel between a wireless interface layer and a proxy server, the wireless interface layer is in communication connection with an application layer, and the wireless interface layer is used for sending a first command of the application layer to the proxy server.
And after the network card establishment confirmation information is acquired, binding the first service of the application layer with the first virtual network card.
In this embodiment, the first service is used as IMS dialing for example, the proxy server establishes a corresponding virtual network card according to an IMS dialing command, and feeds back information of successful establishment of the virtual network card to the application layer, when the application layer sends an IMS registration signaling to the virtual network card, actual data is guided to the physical network card through the virtual network card and sent to a pre-established application server through the Internet, such as SIP signaling simulation and the like; after the IMS protocol stack is registered to the Internet server through the virtual network card, the UE can perform related service tests such as calling, short messages and the like with the server.
Referring to the schematic diagram of the test system architecture shown in fig. 4, in the diagram, the application layer, the android framework, and the RIL are existing system architectures, and the RIL is a radio interface layer, when the BP-side chip can be connected to an operator server, a test command sent by the application side is sent to the radio frequency chip of the BP side through a communication protocol by the radio interface layer, and the radio frequency chip is sent to the operator server for testing. In the figure, the radio frequency chip is taken as a high-pass chip for example, and when the high-pass chip is adopted, the communication protocol is a QMI (quality message inspection) proprietary protocol.
When the test command of the application layer can not be sent out by the chip at the BP side, the invention provides a new angle to solve the problem. And a new connection channel is established between the wireless interface layer and the proxy server through the proxy client, wherein the connection channel is a first channel. Whereby test commands of the application layer can be sent out from the first channel.
In this embodiment, the method for establishing the first channel includes:
the wireless interface layer creates a first channel through the proxy client to connect to the proxy server.
In this embodiment, before sending the first command to the proxy server through the first channel, the test method further includes:
and sending the first command to a wireless interface layer, so that the wireless interface layer calls a proxy client interface to judge whether the first command needs to be proxied to a proxy server or not, and if the first command needs to be proxied to the proxy server, sending the first command to the proxy server through a first channel.
If the agent does not need to be proxied to the agent server, the information is transmitted to the module for processing, and the module feeds back corresponding information of the first command according to the type of the first command.
In this embodiment, a part of instructions can be selectively transmitted to the agent server for processing, most of the instructions are transmitted to the module for processing, the implementation difficulty of the whole simulation is low (only key instructions such as signals and dialing are required to be processed, and instructions such as card information reading are still transmitted through the module for processing), and the use is easy.
The first instruction is transmitted to the proxy server to be processed and can be configured in a file form. Instructions such as PDN dialing configuration, signal strength acquisition and the like are transmitted to a proxy server for processing, and instructions such as SIM card information acquisition and the like are directly sent to a module for processing, because no base station signal exists locally but an SIM card exists. If the SIM card information needs to be simulated, the related instructions of the SIM card can also be proxied to a proxy server side for processing through a configuration form.
In this embodiment, the establishing, by the proxy server, the first virtual network card with the independent IP address according to the first command specifically includes:
and the proxy server calls the TUN/TAP module to create a first virtual network card on the basis of the entity network card according to the first command, and allocates the first virtual network card with an independent IP address.
In this embodiment, the TUN/TAP module: the method is used for creating, deleting, obtaining addresses and other functions of the first virtual network card. The first virtual network card has independent MAC and IP addresses, and the actual data transmission and reception of the first virtual network card depend on a physical network card (wired or WiFi).
In this embodiment, the data transceiving logic of the first virtual network card is: when the first virtual network card receives the data of the application layer, the message is delivered to the entity network card and is sent out through the network port of the entity network card. Capturing the link layer packet of the entity network card, and if the destination MAC address is the first virtual network card address, forwarding the message to the virtual network card for processing.
In this embodiment, the test method further includes:
and receiving the state information of the first virtual network card fed back by the proxy server side, and executing corresponding actions according to the state information of the first virtual network card.
In this embodiment, the state information of the first virtual network card fed back by the proxy server is specifically:
enabling the first virtual network card to execute UP, DOWN and IP changing operations through an ifconfig command of the linux system;
the agent client monitors the operation executed by the first virtual network card and acquires the state information of the first virtual network card.
In this embodiment, the monitoring, by the proxy client, of the operation executed by the first virtual network card specifically includes:
and the proxy client monitors the operation of the first virtual network card through the netlink module.
In this embodiment, the test method further includes:
and receiving a first message generated by the debug module fed back by the proxy client.
The debug module is mainly used for simulating module behaviors, actively reporting state information and connecting with the agent server through a pipeline. For example, echo "+ CSQ: 13, 99 ">/tmp/file format command analog signal strength reporting.
To sum up, the embodiment of the present invention provides a method for testing an external protocol stack of a 4G Desk Phone, which has the following beneficial effects:
1. by adopting the technical scheme of the invention, the data channel can be simulated by establishing the virtual network card under the condition that the virtual network card cannot be connected to the operator network. The application layer can communicate with the application server through the first virtual network card, so that the test of the first service is completed. .
2. By adopting the technical scheme of the invention, the behavior of an external protocol stack does not need to be modified. When the 4G DeskPhone can be connected to an operator server, external protocol stack data is sent to a BP chip through a serial port for sending; when the simulation test is carried out, data is transferred to the entity network card through the virtual network card and then is sent to the Internet from the entity network card, and no difference exists between the external protocol stack and the external protocol stack.
3. Partial instructions can be transmitted to the agent server side for processing, most instructions are transmitted to the module for processing, the whole simulation is low in implementation difficulty (only key instructions such as signals and dialing are required to be processed, and instructions such as card information reading are still transmitted through the module for processing), and the simulation system is easy to use.
4. The agent server can be used for simulating all behaviors of the module (such as signal quality reporting, network card connection and disconnection), and the method has the advantages of wide testable range and flexible expansion.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A method for testing an external protocol stack of a 4G Desk Phone is characterized by comprising the following steps:
sending a test command of a first service to a first virtual network card so that the first virtual network card sends the test command to an application server for testing, wherein the first service is bound with the first virtual network card, and the first virtual network card has an independent IP address.
2. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein before sending the test command of the first service to the first virtual network card, the method further comprises:
sending a first command to a proxy server through a first channel so that the proxy server establishes a first virtual network card with an independent IP address according to the first command and feeds back network card establishment confirmation information after the first virtual network card is established; the first channel is a connection channel between a wireless interface layer and a proxy server, the wireless interface layer is in communication connection with an application layer, and the wireless interface layer is used for sending a first command of the application layer to the proxy server;
and after the network card establishment confirmation information is acquired, binding the first service of the application layer with the first virtual network card.
3. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein the method for establishing the first channel comprises the following steps:
the wireless interface layer creates a first channel through the proxy client to connect to the proxy server.
4. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein before sending the first command to the proxy server via the first channel, the method further comprises:
and sending the first command to a wireless interface layer, so that the wireless interface layer calls a proxy client interface to judge whether the first command needs to be proxied to a proxy server or not, and if the first command needs to be proxied to the proxy server, sending the first command to the proxy server through a first channel.
5. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein the proxy server establishes a first virtual network card with an independent IP address according to a first command, specifically:
and the proxy server calls the TUN/TAP module to create a first virtual network card on the basis of the entity network card according to the first command, and allocates the first virtual network card with an independent IP address.
6. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein the method further comprises:
and receiving the state information of the first virtual network card fed back by the proxy server side, and executing corresponding actions according to the state information of the first virtual network card.
7. The method for testing the external protocol stack of the 4G Desk Phone according to claim 6, wherein the state information of the first virtual network card fed back by the proxy server is specifically:
enabling the first virtual network card to execute UP, DOWN and IP changing operations through an ifconfig command of the linux system;
the agent client monitors the operation executed by the first virtual network card and acquires the state information of the first virtual network card.
8. The method for testing the external protocol stack of the 4G Desk Phone according to claim 7, wherein the proxy client monitors an operation executed by the first virtual network card, specifically:
and the proxy client monitors the operation of the first virtual network card through the netlink module.
9. The method for testing the external protocol stack of the 4G Desk Phone according to claim 1, wherein the method further comprises:
and receiving a first message generated by the debug module fed back by the proxy client.
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