CN104750574B - A kind of firmware restoration method and device of the network equipment - Google Patents
A kind of firmware restoration method and device of the network equipment Download PDFInfo
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- CN104750574B CN104750574B CN201510094537.3A CN201510094537A CN104750574B CN 104750574 B CN104750574 B CN 104750574B CN 201510094537 A CN201510094537 A CN 201510094537A CN 104750574 B CN104750574 B CN 104750574B
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Abstract
The present invention is suitable for network technique field, provides a kind of firmware restoration method and device of network equipment, including：Setting manufacture restores subregion in the flash memory of the network equipment, and the manufacture restores subregion and only supports read operation；After the network equipment powers on, the CPU of the network equipment restores subregion from the manufacture and brings into operation；It triggers the manufacture recovery subregion and enters reforestation practices；It, will be by the firmware restoration that web page uploads to the corresponding flash partition of firmware under the reforestation practices.When the firmware of the network equipment is destroyed, the situation that firmware restoration method provided by the invention can avoid the network equipment and can not successfully start up occurs, user can be guided to complete the firmware reparation of the network equipment by reforestation practices, reduce the number of rewelding of the network equipment and discarded phenomenon, and accelerate the speed of reprocessing of the network equipment, improve production efficiency.
Description
Technical field
The invention belongs to the firmware restoration method and devices of network technique field more particularly to a kind of network equipment.
Background technology
The firmware of home router generally includes bootstrap, operating system and application program, after device power, Gu
Part sequentially performs in the following manner：CPU performs bootstrap, guides operating system after bootstrap initialization hardware, operates
System loads application program.During the use of home router, firmware is there is by the possibility of accidental destruction, for example, solid
In part escalation process accident power-off or used it is incompatible crack firmware etc., can not be just so as to cause home router
Often start.
At present, in intelligent domestic router, dual system is introduced to solve the above problems.The firmware of dual system forms logical
Often include a bootstrap, two parts of operating systems and two parts of application programs, after device power, the execution sequence of firmware is " draws
Helical pitch sequence-operating system 1- application programs 1 " or " bootstrap-operating system 2- application programs 2 ", bootstrap root
Guiding operating system 1 or operating system 2 are determined according to the flag bit of storage in a flash memory.However, above-mentioned solution need by
Flash memory volume nearly doubles, and the wasting of resources is caused, and there are the possibility of updated boot programs, so as to introduce bootstrap quilt
The possibility of destruction causes equipment not start normally.
Invention content
The firmware restoration method and device for being designed to provide a kind of network equipment of the embodiment of the present invention, it is intended to solve mesh
Firmware in the preceding network equipment is by the problem of after accidental destruction, the network equipment can not normally start.
The embodiment of the present invention is achieved in that a kind of firmware restoration method of network equipment, including：
Setting manufacture restores subregion in the flash memory of the network equipment, and the manufacture restores subregion and only supports read operation；
After the network equipment powers on, the CPU of the network equipment restores subregion from the manufacture and brings into operation；
It triggers the manufacture recovery subregion and enters reforestation practices；
Under the reforestation practices, the firmware restoration that web page uploads to the corresponding flash partition of firmware will be passed through
In.
The another object of the embodiment of the present invention is to provide a kind of firmware restoration device of network equipment, including：
Setting unit, for the setting manufacture recovery subregion in the flash memory of the network equipment, the manufacture restores subregion
Only support read operation；
Running unit, after being powered on for the network equipment, the CPU of the network equipment restores subregion from the manufacture
It brings into operation；
First trigger element enters reforestation practices for triggering the manufacture recovery subregion；
Recovery unit, under the reforestation practices, the firmware restoration that web page uploads to the firmware pair will to be passed through
In the flash partition answered.
When the firmware of the network equipment is destroyed, firmware restoration method provided in an embodiment of the present invention can avoid network from setting
Standby situation about can not successfully start up occurs, and user can be guided to complete the firmware reparation of the network equipment by reforestation practices, reduced
The number of rewelding of the network equipment and discarded phenomenon, and accelerate the speed of reprocessing of the network equipment, improve production efficiency.
Description of the drawings
Fig. 1 is the realization flow chart of the firmware restoration method of the network equipment provided in an embodiment of the present invention；
Fig. 2 is the specific implementation flow chart of the firmware restoration method S103 of the network equipment provided in an embodiment of the present invention；
Fig. 3 is the specific implementation flow of the firmware restoration method S103 for the network equipment that another embodiment of the present invention provides
Figure；
Fig. 4 is the specific implementation flow chart of the firmware restoration method S301 of the network equipment provided in an embodiment of the present invention；
Fig. 5 is the specific implementation flow of the firmware restoration method S103 for the network equipment that another embodiment of the present invention provides
Figure；
Fig. 6 is the workflow schematic diagram of the firmware restoration method S104 of the network equipment provided in an embodiment of the present invention；
Fig. 7 is the bootmode work flow diagram of the firmware restoration method of the network equipment provided in an embodiment of the present invention；
Fig. 8 is the structure diagram of the firmware restoration device of the network equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the realization flow of the firmware restoration method of the network equipment provided in an embodiment of the present invention, and details are as follows：
In S101, the setting manufacture recovery subregion in the flash memory of the network equipment, the manufacture restores subregion and only props up
Hold read operation.
Wherein, the network equipment including but not limited to home router or has and home router similar system
The Embedded Network Device of framework.
The flash memory, i.e. flash have the performance that Electrical Erasable may be programmed (EEPROM), can also quickly read number
According to, data is made not lost because of power-off, therefore, are widely adopted in embedded device, as storage Bootloader
And operating system or program code.It generally includes to store bootstrap, behaviour respectively in traditional network equipment flash memory
Make three subregions of system and application program, and in the present embodiment, increase manufacture in the flash memory of the network equipment and restore subregion,
The subregion only supports read operation, that is, after network equipment manufacture, the data content in the subregion just no longer changes.
In S102, after the network equipment powers on, the CPU of the network equipment is since the manufacture restores subregion
Operation.
In the present embodiment, setting manufacture recovery subregion is stored since the zero-address of the flash memory of the network equipment, once net
After network device power, CPU just brings into operation from the zero-address of flash, that is, restores subregion from manufacture and brings into operation.
In S103, trigger the manufacture recovery subregion and enter reforestation practices.
Manufacture, which restores subregion, can be operated in both of which, including bootmode and reforestation practices, wherein, work as the network equipment
Firmware go wrong when can not start, manufacture can be triggered restore subregion and enter reforestation practices, be used to implement firmware restoration.
As one embodiment of the present of invention, it can manually trigger manufacture recovery subregion and enter reforestation practices,
As shown in Fig. 2, S103 is specially：
In S201, when the network equipment powers on, whether the reset key for detecting the network equipment is pressed.
In S202, when the reset key of the network equipment is pressed, the triggering manufacture restores subregion and enters recovery mould
Formula.
On network devices after electricity, whether reset (Reset) button for detecting the network equipment is pressed, if reset key
It is not pressed, then starts the network equipment by normal Booting sequence；If reset key is pressed, trigger manufacture restore subregion into
Enter reforestation practices.Therefore, in the present embodiment, if finding, the firmware of the network equipment is destroyed, and can not be started, user can be in net
The reset key of the network equipment is manually pressed by after network device power, to perform firmware restoration process.
As one embodiment of the present of invention, manufacture recovery subregion can be triggered by automated manner and enters reforestation practices,
As shown in figure 3, S103 is specially：
In S301, whether the firmware partition data detected in the flash memory of the network equipment are complete.
In S302, if the firmware partition data in the flash memory of the network equipment are imperfect, trigger the manufacture and restore
Subregion enters reforestation practices.
On network devices after electricity, whether the data of subregion are complete where detecting firmware first, if subregion where firmware
Data it is complete, then by normal Booting sequence start the network equipment；If the data of subregion are imperfect where firmware, trigger out
Factory restores subregion and enters reforestation practices.Therefore, in the present embodiment, if the firmware of the network equipment is destroyed, can not start, network
Equipment after power-up can be automatically into firmware restoration operating mode, further to perform firmware restoration process.
The detection of data integrity where firmware can be realized by preset algorithm, one as the present invention
Embodiment, as shown in figure 4, S301 is specially：
In S401, the check value of the firmware partition data is calculated by preset algorithm.
In S402, judge the check value calculated and be stored in advance in it is described manufacture restore subregion in check value whether
Unanimously.
In S403, if the check value calculated differs with the check value being stored in advance in the manufacture recovery subregion
It causes, then the firmware partition data in the flash memory of the network equipment are imperfect.
In S404, if the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion,
Firmware partition data then in the flash memory of the network equipment are complete.
For example, partition data where firmware can be calculated by MD5 (Message-Digest Algorithm 5) algorithm
MD5 values, and after once carrying out firmware update on network devices, the MD5 values of complete firmware have been stored in manufacture and have restored
Among subregion, therefore, the MD5 values calculated and the MD5 values being stored in advance in manufacture recovery subregion can be compared, sentenced
It is both disconnected whether consistent, if unanimously, then it represents that firmware is not destroyed, then start the network equipment by normal Booting sequence；
It is if inconsistent, then it represents that firmware is destroyed, and triggering manufacture is needed to restore subregion and enters reforestation practices.
Other than manufacture recovery subregion is triggered above by manually and automatically two ways and enters reforestation practices, it is clear that
The method that manually and automatically two ways is combined can also be used, triggering manufacture restores subregion and enters reforestation practices, such as Fig. 5 institutes
Show, on network devices after electricity, first determine whether the reset key of the network equipment is pressed, if reset key is pressed,
Then directly triggering manufacture recovery subregion enters reforestation practices；If reset key is not pressed, firmware place point is further detected
Whether the data in area are complete, if imperfect, directly triggering manufacture recovery subregion enters reforestation practices, if completely, by just
Normal Booting sequence starts the network equipment.
It, will be corresponding to the firmware by the firmware restoration that web page uploads under the reforestation practices in S104
In flash partition.
Once manufacture, which restores subregion, enters reforestation practices, then providing DynamicHost by program preset in the subregion matches
Agreement (Dynamic Host Configuration Protocol) service is put, for dividing for the client of access network device
With IP address, meanwhile, Web service is provided, for providing web page to client so that user uploads firmware.Work as the network equipment
The firmware uploaded by web page is received, detects the legitimacy of firmware first, for example, whether the version number of firmware is correct, etc.
Deng if after judging that firmware is legal, firmware is written corresponding flash subarea.
As a kind of common type of the network equipment, next, by taking the intelligent router of household as an example, the present invention is implemented
The workflow of the firmware restoration method S104 for the network equipment that example provides is described in detail.The intelligent router, at present
It is generalized under the scenes such as family, office space, usually there is independent operating system, can voluntarily be pacified by user
Fill various applications, voluntarily control bandwidth, voluntarily control online number, voluntarily control browsing webpage, voluntarily control line duration, be same
USB sharing functionalities powerful Shi Yongyou, are truly realized network and the intelligent management of equipment.In the present embodiment, user passes through
Web page is managed intelligent router operation：
First, user opens browser on the terminal devices such as computer, notebook, tablet, mobile phone, accesses Intelligent routing
The administration page of device, intelligent router return to the firmware for uploading firmware to terminal device after access instruction is received
Restore the page；In firmware upload procedure, for the firmware uploaded, intelligent router can detect the legitimacy of the firmware, if
The firmware of upload is illegal, then the prompt message of " firmware is incorrect, please uploads again " can be returned by Web page, if uploading
Firmware it is legal, then can attempt will be among the corresponding flash subarea of firmware write-in intelligent router；In the firmware to receiving
After performing write operation, judge whether the firmware is written success, if being written successfully, set intelligent router can be at 2 seconds
Restart later or restart automatically after firmware restoration success；If write-in failure prompts user again by web page
Upload firmware.
In addition, in embodiments of the present invention, in the case of firmware is not destroyed or firmware restoration is successful, if network
Device power or after restarting, then trigger manufacture and restore subregion and enter bootmode, then at this point, as shown in fig. 7, the network equipment
Operational process be：Subregion where subregion jumps to bootstrap is restored by manufacture, behaviour is guided after bootstrap initialization hardware
Make system, operating system loading application programs so as to complete the startup of the network equipment, realize the normal operation of the network equipment.
When the firmware of the network equipment is destroyed, firmware restoration method provided in an embodiment of the present invention can avoid network from setting
Standby situation about can not successfully start up occurs, and user can be guided to complete the firmware reparation of the network equipment by reforestation practices, reduced
The number of rewelding of the network equipment and discarded phenomenon, meanwhile, for the networking products reprocessed, without flash is welded from PCB
Again programming can accelerate the speed of reprocessing of the network equipment, improve production efficiency.
Meanwhile the manufacture recovery subregion that the embodiment of the present invention refers to only needs the flash within occupancy 128Kbytes to provide
The flash of the network equipment with regard to that can support firmware restoration function, without expanding flash capacity on hardware, has been saved in source well
Resource, and entire firmware restoration process is supported without operating system, implements simply, to substantially increase the efficiency of firmware restoration.
Corresponding to the firmware restoration method of the network equipment described in foregoing embodiments, Fig. 8 shows that the embodiment of the present invention carries
The structure diagram of the firmware restoration device of the network equipment of confession, the device can be located in the network equipments such as home router, be
Convenient for explanation, part related to the present embodiment is illustrated only.
With reference to Fig. 8, which includes：
Setting unit 81, the setting manufacture recovery subregion in the flash memory of the network equipment, the manufacture restore subregion only
Support read operation.
Running unit 82, after the network equipment powers on, the CPU of the network equipment restores subregion from the manufacture and opens
Begin to run.
First trigger element 83 triggers the manufacture recovery subregion and enters reforestation practices.
Recovery unit 84 under the reforestation practices, will be corresponded to by the firmware restoration that web page uploads to the firmware
Flash partition in.
Optionally, first trigger element 83 includes：
First detection sub-unit, when the network equipment powers on, whether the reset key for detecting the network equipment is pressed
Under.
First triggering subelement, when the reset key of the network equipment is pressed, the triggering manufacture restores subregion and enters
Reforestation practices.
Optionally, first trigger element 83 includes：
Whether the second detection sub-unit, the firmware partition data detected in the flash memory of the network equipment are complete.
Second triggering subelement, if the firmware partition data in the flash memory of the network equipment are imperfect, goes out described in triggering
Factory restores subregion and enters reforestation practices.
Optionally, second detection sub-unit is specifically used for：
The check value of the firmware partition data is calculated by preset algorithm；
Judge whether the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion；
If the check value calculated and the check value being stored in advance in the manufacture recovery subregion are inconsistent, the net
Firmware partition data in the flash memory of network equipment are imperfect；
If the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion, the network
Firmware partition data in the flash memory of equipment are complete.
Optionally, described device further includes：
Second trigger element triggers the manufacture recovery subregion and enters bootmode.
Start unit restores subregion by the manufacture and jumps to the bootstrap place point in the flash memory of the network equipment
Area starts the network equipment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of firmware restoration method of network equipment, which is characterized in that including：
Setting manufacture restores subregion in the flash memory of the network equipment, and the manufacture restores zero-address of the subregion from the flash memory
Start to store, the manufacture restores subregion and only supports read operation；
After the network equipment powers on, the CPU of the network equipment is transported since the manufacture restores the initial position of subregion
Row；
It triggers the manufacture recovery subregion and enters reforestation practices；
It, will be by the firmware restoration that web page uploads to the corresponding flash partition of firmware under the reforestation practices.
2. the method as described in claim 1, which is characterized in that the triggering manufacture restores subregion and enters reforestation practices packet
It includes：
When the network equipment powers on, whether the reset key for detecting the network equipment is pressed；
When the reset key of the network equipment is pressed, the triggering manufacture restores subregion and enters reforestation practices.
3. the method as described in claim 1, which is characterized in that the triggering manufacture restores subregion and enters reforestation practices packet
It includes：
Whether the firmware partition data detected in the flash memory of the network equipment are complete；
If the firmware partition data in the flash memory of the network equipment are imperfect, trigger the manufacture recovery subregion and enter recovery mould
Formula.
4. method as claimed in claim 3, which is characterized in that the firmware partition in the flash memory of the detection network equipment
Whether data completely include：
The check value of the firmware partition data is calculated by preset algorithm；
Judge whether the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion；
If the check value calculated is inconsistent with being stored in advance in the check value that the manufacture restores in subregion, the network is set
Firmware partition data in standby flash memory are imperfect；
If the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion, the network equipment
Flash memory in firmware partition data it is complete.
5. such as Claims 1-4 any one of them method, which is characterized in that the method further includes：
It triggers the manufacture recovery subregion and enters bootmode；
Subregion where subregion jumps to the bootstrap in the flash memory of the network equipment is restored by the manufacture, starts the net
Network equipment.
6. a kind of firmware restoration device of network equipment, which is characterized in that including：
Setting unit, for the setting manufacture recovery subregion in the flash memory of the network equipment, the manufacture restores subregion from institute
The zero-address for stating flash memory starts to store, and the manufacture restores subregion and only supports read operation；
Running unit, after being powered on for the network equipment, the CPU of the network equipment is from the manufacture restores subregion
Beginning position brings into operation；
First trigger element enters reforestation practices for triggering the manufacture recovery subregion；
Recovery unit, will be corresponding to the firmware by the firmware restoration that web page uploads under the reforestation practices
In flash partition.
7. device as claimed in claim 6, which is characterized in that first trigger element includes：
First detection sub-unit, for when the network equipment powers on, whether the reset key for detecting the network equipment to be pressed
Under；
First triggering subelement, the reset key for working as the network equipment are pressed, and are triggered the manufacture and are restored subregion entrance
Reforestation practices.
8. device as claimed in claim 6, which is characterized in that first trigger element includes：
Whether the second detection sub-unit is complete for detecting the firmware partition data in the flash memory of the network equipment；
Second triggering subelement, if the firmware partition data in the flash memory of the network equipment are imperfect, goes out described in triggering
Factory restores subregion and enters reforestation practices.
9. device as claimed in claim 8, which is characterized in that second detection sub-unit is specifically used for：
The check value of the firmware partition data is calculated by preset algorithm；
Judge whether the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion；
If the check value calculated is inconsistent with being stored in advance in the check value that the manufacture restores in subregion, the network is set
Firmware partition data in standby flash memory are imperfect；
If the check value calculated is consistent with being stored in advance in the check value that the manufacture restores in subregion, the network equipment
Flash memory in firmware partition data it is complete.
10. such as claim 6 to 9 any one of them device, which is characterized in that described device further includes：
Second trigger element enters bootmode for triggering the manufacture recovery subregion；
Start unit jumps to the bootstrap place point in the flash memory of the network equipment for restoring subregion by the manufacture
Area starts the network equipment.
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| CN201510094537.3A CN104750574B (en) | 2015-03-03 | 2015-03-03 | A kind of firmware restoration method and device of the network equipment |
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| CN201510094537.3A CN104750574B (en) | 2015-03-03 | 2015-03-03 | A kind of firmware restoration method and device of the network equipment |
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| CN104750574B true CN104750574B (en) | 2018-06-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105912346A (en) * | 2016-05-09 | 2016-08-31 | 合肥联宝信息技术有限公司 | Firmware version recovery method and device as well as terminal |
| CN106199395A (en) * | 2016-07-20 | 2016-12-07 | 四川泰瑞创通讯技术股份有限公司 | The method of testing that detection optical module firmware is lost |
| CN106445713A (en) * | 2016-09-06 | 2017-02-22 | 深圳市广和通无线股份有限公司 | Recovery method of communication module startup exception |
| CN106776122A (en) * | 2016-11-23 | 2017-05-31 | 武汉光迅科技股份有限公司 | A kind of method of main-apparatus protection in start-up course based on Flash |
| CN112035171B (en) * | 2020-08-12 | 2023-10-03 | 昆仑太科(北京)技术股份有限公司 | Factory setting restoration method and system based on UEFI firmware |
| CN114281598A (en) * | 2021-04-15 | 2022-04-05 | 上海商米科技集团股份有限公司 | flash backup recovery method and system, communication equipment and storage medium |
| CN117234544B (en) * | 2023-11-14 | 2024-01-26 | 海马云（天津）信息技术有限公司 | Method and device for recovering system of server equipment |
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| CN102141940A (en) * | 2010-12-29 | 2011-08-03 | Tcl集团股份有限公司 | Device, method and system for recovering firmware update |
| CN102508686A (en) * | 2011-11-30 | 2012-06-20 | 苏州希图视鼎微电子有限公司 | Method and system for realizing safe upgrading of system |
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