CN109996316B - Method and equipment for accessing network based on SmartLink mode - Google Patents
Method and equipment for accessing network based on SmartLink mode Download PDFInfo
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Abstract
The invention relates to a method and a device for accessing a network based on a SmartLink mode, which comprises the following steps: step A: entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and, step B: network packet data in the environment is intercepted through a network driver to be analyzed and screened, and only SmartLink network packets in the environment are cached; and C: analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
Description
Technical Field
The invention belongs to the technical field of Internet of things, and particularly relates to a method and equipment for accessing a network based on a SmartLink mode.
Background
SmartLink is a network access mode commonly used in the field of Internet of Things (IoT), in particular to a mode for connecting an intelligent device Wifi module with a wireless router, after a user sets APP, the wireless router broadcasts information such as account number, password, IP (Internet protocol), port number and the like, and the intelligent device accesses a network after acquiring the information.
The existing SmartLink uses Software Development Kit (SDK) to operate. In particular, in the environment of Linux system, as the level operation of application program, when operating, in order to analyze SmartLink network packet, it provides all packets on all networks that all Linux network drivers can intercept to Linux system, then temporarily stores them in dynamic memory, re-orders, searches and screens, finds out all correct packets with protocol SmartLink data arranged according to time sequence, and obtains the information of network channel, address, password, etc. needed by operating SmartLink by analyzing the data in SmartLink packet, so as to perform correct SmartLink action.
The above method has the disadvantage of consuming too much system resources. Because all network packets need to be stored temporarily, no matter the SmartLink packets are captured into the system by the network driver under Linux system, it will require huge storage resources to store data with the system; in addition, after the SmartLink packet is screened out from the huge storage data and stored again, the content data of the data needs to be sorted and decoded, which results in more storage resources being consumed. The above approach also places high computational power requirements on the CPU, which otherwise cannot complete all output-input (I/O) packet work and read/write (R/W) memory operations in a short time. For the above reasons, the current SmartLink is difficult to be implemented in a small CPU system with 400MHz timing, MIPS 24K timing, and large end, such as the high-pass chip AR9331, and even the system is broken down and cannot work normally when the SmartLink SDK is operated.
In short, the existing SmartLink SDK access mode puts higher requirements on the performance of the device, which increases the cost of the device, and has a very adverse effect on the development of the IoT device toward low cost, small systems and multiple aspects.
Disclosure of Invention
The invention provides a method and equipment for accessing a network based on a SmartLink mode, which are used for solving the problems that in the prior art, an IoT is accessed into a wireless network through a SmartLink SDK, so that the consumption of computing resources and storage resources is high, and the development of IoT equipment towards low cost, small system and multiple aspects is not facilitated.
The technical scheme provided by the invention is as follows:
a method for accessing a network based on a SmartLink mode is characterized by comprising the following steps:
step A: entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and the number of the first and second groups,
and B: network packet data in the environment is intercepted through a network driver to be analyzed and screened, and only SmartLink network packets in the environment are cached;
and C: analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
Preferably, the network access information includes:
the service identification set SSID, password and seed id of the wireless network.
Preferably, intercepting network packet data in the environment through the network driver includes:
network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
Preferably, the method further comprises the following steps:
and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
Preferably, the method further comprises the following steps:
presetting a trigger button for starting SmartLink action;
when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; wherein, the network driver is pre-implanted with a program supporting callback function;
and executing the steps A to C when the trigger button is determined to generate the trigger signal.
A device for accessing a network based on a SmartLink mode is characterized by comprising:
the processing chip is used for entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information;
the Wifi module is used for intercepting network packet data in the environment under the control of a network driver and completing the connection with an upper wireless network in a processing chip bridging mode;
the first cache space is used for caching the network packet data acquired by the network driving program;
and the second cache space is used for caching SmartLink network packets acquired by the application program.
Preferably, the network access information includes:
the service identification set SSID, password and seed id of the wireless network.
Preferably, the processing chip is configured to, when intercepting the network packet data in the environment through the network driver, specifically:
network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
Preferably, the processing chip is further configured to:
and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
Preferably, the processing chip is further configured to:
when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; the network driver is pre-implanted with a program supporting callback function;
when the trigger button is determined to generate a trigger signal, entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
In the invention, the network driver only caches and calls back SmartLink network packets to the application program, thereby saving the time for transmitting other types of unnecessary packets between the driver layer and the application layer, saving the packet data caching space used by the driver layer, saving the caching space for sequencing and reading the required packet data by the application layer, and reducing the configuration cost of a memory.
Drawings
Fig. 1 is a schematic flow chart of a method for accessing a network based on a SmartLink mode provided by the invention;
fig. 2 is a schematic flow chart of another method for accessing a network based on a SmartLink mode provided by the invention;
FIG. 3 is a schematic flow chart provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device accessing a network based on a SmartLink mode provided by the present invention.
Detailed Description
The invention provides a method and equipment for accessing a network based on a SmartLink mode, which can ensure that the SmartLink can normally operate under a small system such as an AR9331 without needing a very large memory for standby, can reduce the cost, and can be executed without a CPU with great computing power, for example, an ARM CPU with more than 1GHz is needed, so that the cost of the equipment is saved, the system scale of the whole equipment is reduced, and the popularization and implementation of the SmartLink on an IoT equipment becomes possible.
Referring to fig. 1, a method for accessing a network based on a SmartLink provided by the present invention includes:
step A: entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and the number of the first and second groups,
and B: network packet data in the environment is intercepted through a network driver to be analyzed and screened, and only SmartLink network packets in the environment are cached;
and C: analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
Preferably, the network access information in step C includes: a Service Set Identifier (SSID), a password (password), and a seed id for the wireless network.
Preferably, the intercepting of the network packet data in the environment through the network driver in step B includes: network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
Preferably, the method further comprises: and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
Referring to fig. 2, another method for accessing a network based on a SmartLink provided by the present invention includes: :
step A: presetting a trigger button for starting SmartLink action;
and B: when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; wherein, the network driver is pre-implanted with a program supporting callback function;
and C: when the trigger button is determined to generate a trigger signal, entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and the number of the first and second groups,
step D: network packet data in the environment is intercepted through a network driver to be analyzed and screened, and only SmartLink network packets in the environment are cached;
step E: analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
To fully explain the above method, a specific embodiment of the present invention using a model AR9331 processing chip will be given below with reference to fig. 3.
The specific embodiment of the invention comprises the following steps:
a. a user trigger button for starting SmartLink action is arranged in the system;
b. when the equipment Linux operating system is started, the network driver which is modified and implanted with the Airkiss callback program is registered to receive a SmartLink trigger notification;
c. when the button hardware trigger signal is informed to an Airkiss application program, a network driver with an Airkiss callback function is started, and an Airkiss operation flow is started;
the operating flow of the airkiss program method is shown in fig. 3, and comprises the following steps:
d1. starting an Airkiss application program;
d2.AR9331 enters a monitoring mode, registers a SmartLink network packet data monitoring callback function and only reads back the SmartLink network packet from a network driver
d3. After intercepting all network packet data, the network driver analyzes and screens SmartLink packet data according to an Internet access configuration protocol of the Internet of things equipment to only leave SmartLink packets;
d4. acquiring DATA through the IOCTL _ READ _ AIRKISS _ DATA, and judging whether SmartLink DATA is acquired or not and DATA receiving is completed; if so, go to d 5; otherwise, go to d 9;
d5. storing the acquired upper network information such as SSID, Password, seed id and the like;
6.AR9331 exits the monitoring mode, enters the bridge connection mode and is connected to the upper network according to the acquired network information;
d7. judging whether the connection is successful, if so, turning to d 8; otherwise, ending;
d8. and (2) according to a network access configuration protocol of the internet of things equipment, pdf and the like, at a port: 7084 SmartLink acknowledgement packet broadcast is sent by User Datagram Protocol (UDP); finishing;
d9. judging whether the channels 1-13 are scanned completely, if so, turning to d 10; otherwise, go to d 11;
d10. if the SmartLink data is not received, the AR9331 exits the monitoring mode and calls back the mode state before the SmartLink configuration; finishing;
d11.AR9331 switches WiFi channel and receives next channel data; turn d3.
The technical scheme provided by the specific embodiment has the following technical effects:
modifying a network driver program, so that only screened SmartLink packets are returned when Airkiss callback is provided, temporary storage and analysis screening actions of all intercepted network packets are changed in an application layer program, a required SmartLink packet is immediately analyzed and screened when all network packets are intercepted by a driver layer, the time for transmitting all unnecessary packets between the driver layer and the application layer is saved, the packet data cache space used by the driver layer is also saved, the cache space for sequencing and reading the required packet data by the application layer is further saved, a large amount of memory space is saved, and the memory configuration cost is reduced; the CPU operation time and energy consumption are greatly saved, so that the 400MHz MIPS 24K low-end CPU can also finish SmartLink work correctly and rapidly.
The SmartLink equipment system applying the technical scheme can quickly and correctly complete the SmartLink function only by using 16MB of Flash storage firmware and 64MB of DDR as dynamic memories, and compared with the cost required by using 1GHz and ARM-based SmartLink equipment with the lowest 1GB Flash and 2GB DDR, the invention greatly reduces the required resources and configuration cost of the system, reduces the consumption resources of the equipment, ensures that the low-cost IoT equipment can quickly and correctly use the SmartLink function, and cannot cause the overlarge burden of low-order system resources to cause the crash system to be incapable of running like the original SmartLink SDK scheme.
Referring to fig. 4, the apparatus for accessing a network based on a SmartLink provided by the present invention includes:
the processing chip 410 is used for entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information;
a Wifi module 420, configured to intercept network packet data in an environment under control of a network driver, and complete connection with an upper-layer wireless network in a processing chip bridging mode;
a first buffer space 430 for buffering the network packet data obtained by the network driver;
the second buffer space 440 is used for buffering SmartLink network packets acquired by the application program.
Preferably, the network access information includes: SSID, password, and seed id.
Preferably, the processing chip 410 is configured to intercept network packet data in the environment through a network driver, and is specifically configured to: network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
Preferably, the processing chip 410 is further configured to: and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
Preferably, the processing chip 410 is further configured to: when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; the network driver is pre-implanted with a program supporting callback function; when the trigger button is determined to generate a trigger signal, entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, 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, 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, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1.A method for accessing a network based on a SmartLink mode is characterized by comprising the following steps:
step A: entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and the number of the first and second groups,
and B: network packet data in the environment is intercepted through a network driver to be analyzed and screened, and only SmartLink network packets in the environment are cached;
and C: analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
2. The method of claim 1, wherein the network access information comprises:
the service identification set SSID, password and seed id of the wireless network.
3. The method of claim 1, wherein intercepting network packet data in an environment via a network driver comprises:
network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
4. The method of claim 1, further comprising:
and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
5. The method of claim 1, further comprising:
presetting a trigger button for starting SmartLink action;
when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; wherein, the network driver is pre-implanted with a program supporting callback function;
and executing the steps A to C when the trigger button is determined to generate the trigger signal.
6.A device for accessing a network based on a SmartLink mode is characterized by comprising:
the processing chip is used for entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information;
the Wifi module is used for intercepting network packet data in the environment under the control of a network driver and completing the connection with an upper wireless network in a processing chip bridging mode;
the first cache space is used for caching the network packet data acquired by the network driving program;
and the second cache space is used for caching SmartLink network packets acquired by the application program.
7. The apparatus of claim 6, wherein the network access information comprises:
the service identification set SSID, password and seed id of the wireless network.
8. The apparatus of claim 6, wherein the processing chip, when configured to intercept network packet data in an environment via a network driver, is further configured to:
network packet data of any one of channel1 to channel 13 is intercepted by a network driver.
9. The device of claim 6, wherein the processing chip is further to:
and when the network driver is confirmed not to find the SmartLink network packet within the preset time length in the monitoring process, exiting the monitoring mode and recovering the mode state of starting the monitoring mode.
10. The device of claim 6, wherein the processing chip is further to:
when the Linux operating system is started, indicating a network driver to prepare to receive a SmartLink triggering notification; the network driver is pre-implanted with a program supporting callback function;
when the trigger button is determined to generate a trigger signal, entering a monitoring mode, registering a SmartLink network packet data monitoring callback function through an application program, and reading back the SmartLink network packet from a network driver according to the monitoring callback function; and intercepting network packet data in the environment through a network driver to analyze and screen, and only caching SmartLink network packets in the environment; analyzing SmartLink network packets acquired from a network driver through an application program, exiting a monitoring mode after analyzing network access information from the SmartLink network packets, entering a bridging mode, and connecting an upper-layer wireless network according to the network access information.
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