CN106127071A - A kind of file access guard method based on mobile terminal, system and mobile terminal - Google Patents
A kind of file access guard method based on mobile terminal, system and mobile terminal Download PDFInfo
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- CN106127071A CN106127071A CN201610456297.1A CN201610456297A CN106127071A CN 106127071 A CN106127071 A CN 106127071A CN 201610456297 A CN201610456297 A CN 201610456297A CN 106127071 A CN106127071 A CN 106127071A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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Abstract
A kind of file access guard method based on mobile terminal provided by the present invention, system and mobile terminal, described method specifically includes: mobile terminal is in advance to the file configuration lock token stored；When mobile terminal receives the order opening file, obtain the lock token of described current file, and judge whether described current file locks；If locking, then perform default file protection flow process；Otherwise, file is normally opened.The present invention is made marks by the file locked needs at the kernel layer of mobile terminal in advance, when the order accessing file arrives kernel layer, and whether checking this document has labelling of locking.If it has, then denied access；In like manner, after file unlocks, the labelling being saved in file system after original locking; will be deleted; this document reverts to the state of ordinary file, so that mobile terminal increases a kind of new file access guard method quickly saving again memory source, brings great convenience to user.
Description
Technical field
The present invention relates to technical field of mobile terminals, particularly relate to a kind of file access protection side based on mobile terminal
Method, system and mobile terminal.
Background technology
Along with the fast development of development of Mobile Internet technology, mobile terminal has come into intellectualization times, such as: intelligence hands
Machine, panel computer etc.；People are increasingly utilized intelligent mobile terminal and move office, mobile e-business, move and prop up
Pay, mobile entertainment etc.；Obviously, intelligent mobile terminal carries increasing individual privacy information, including finance and money management phase
Pass program, secret photo and various secret files etc..Smart mobile phone has become one of most equipment of storage individual privacy, if
User's imprudence lost mobile phone, does not has the measure of security protection, then the information in mobile phone is stolen by other people easily yet.Light then make
Become personal property, the loss of society's fame, affect the order of family life, heavy then be likely to result in company, machine-operated government, secret quilt
Illegally steal, cause heavy losses.
It follows that prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that a kind of based on mobile whole
File access guard method, system and the mobile terminal of end, it is intended to by advance at the kernel layer of mobile terminal on needs
The file of lock makes marks, when the order accessing file arrives kernel layer, and whether checking this document has labelling of locking.If
Have, then denied access；In like manner, after file unlocks, the labelling being saved in file system after original locking, will be deleted, should
File access pattern is the state of ordinary file, so that mobile terminal increases a kind of new file quickly saving again memory source and visits
Ask guard method, bring great advantage to the user.
It is as follows that the present invention solves the technical scheme that technical problem used:
A kind of file access guard method based on mobile terminal, wherein, including step:
S1, mobile terminal are in advance to the file configuration lock token stored；
S2, when mobile terminal receives the order opening file, obtain the lock token of described current file, and judge described
Whether current file locks；
If S3 locks, then perform default file protection flow process；Otherwise, file is normally opened.
Described file access guard method based on mobile terminal, wherein, further comprises the steps of: before described step S1
S0, in described mobile terminal, arrange and store file and the attribute information corresponding with described file in advance, described
Attribute information includes: file name, file store path and the lock token of described file, and described lock token includes: on
Lock and unblock.
Described file access guard method based on mobile terminal, wherein, described step S1 specifically includes step:
S11, mobile terminal-opening, be simultaneously used for carrying out file the Daemon process initiation of lock/unlock；
S12, when described mobile terminal opens certain application program, described application program and described Daemon process are set up even
Connect；
The file and the attribute information corresponding with described file that need lock/unlock are sent extremely by S13, described application program
Daemon process；
S14, described Daemon process call mobile terminal kernel layer interface, and connect to the transmission of described mobile terminal kernel layer
The described file received and the attribute information corresponding with described file；
Nodal community flag bit corresponding in file system residing for described file is entered by S15, described mobile terminal kernel layer
Row locks set or unblock is empty operation.
Described file access guard method based on mobile terminal, wherein, described step S2 specifically includes step:
S21, mobile terminal receive application program and open the order of file；
S22, described order arrive mobile terminal kernel layer, described mobile terminal kernel layer according to current file path and
File name, searches the nodal community flag bit of described current file；
S23, according to described nodal community flag bit judge described current file whether lock.
Described file access guard method based on mobile terminal, wherein, described step S3 specifically includes step:
If S31 detects that the nodal community flag bit of described current file is set, then interrupt opening file command, and pass through
Locked for current file message is shown on mobile terminal screen by push-mechanism；
If S32 detects that the nodal community flag bit of described current file, for being empty, the most normally opens file.
A kind of file access based on mobile terminal protection system, wherein, including:
The pre-storing module of fileinfo, for arranging and store file and relative with described file in advance in described mobile terminal
The attribute information answered, described attribute information includes: file name, file store path and the lock token of described file, institute
State lock token to include: lock and unlock；
Lock module in advance, for mobile terminal in advance to the file configuration lock token stored；
Locking determination module, for when mobile terminal receives the order opening file, obtains the locking of described current file
Labelling, and judge whether described current file locks；
File protection module, if for locking, then performs default file protection flow process；Otherwise, file is normally opened.
Described file access based on mobile terminal protection system, wherein, the described module of locking in advance specifically includes:
Daemon process initiation unit, for mobile terminal-opening, the Daemon being simultaneously used for carrying out file lock/unlock enters
Cheng Qidong；
Connection establishment unit, for when described mobile terminal opens certain application program, described application program is with described
Daemon process is set up and is connected；
Fileinfo the first transmitting element, for described application program by need lock/unlock file and with described file
Corresponding attribute information sends to Daemon process；
Fileinfo the second transmitting element, calls mobile terminal kernel layer interface for described Daemon process, and to described
Mobile terminal kernel layer sends the described file and the attribute information corresponding with described file received；
Set/be empty unit, for described mobile terminal kernel layer by joint corresponding in the file system residing for described file
Point attribute mark position carries out locking set or unblock is empty operation.
Described file access based on mobile terminal protection system, wherein, described locking determination module specifically includes:
File Open order unit, receives application program for mobile terminal and opens the order of file；
Flag bit search unit, for described order arrive mobile terminal kernel layer, described mobile terminal kernel layer according to
Current file path and file name, search the nodal community flag bit of described current file；
According to described nodal community flag bit, file locking identifying unit, for judging whether described current file locks.
Described file access based on mobile terminal protection system, wherein, described file protection module specifically includes:
File Open interrupt location, if being set for the nodal community flag bit of described current file being detected, then interrupts beating
Open file order, and by push-mechanism, locked for current file message is shown on mobile terminal screen；
Unit normally opened by file, if for detecting that the nodal community flag bit of described current file, for being empty, is the most normally beaten
Open file.
A kind of mobile terminal, wherein, protects system including the file access based on mobile terminal described in any of the above item.
A kind of file access guard method based on mobile terminal provided by the present invention, system and mobile terminal, described
Method specifically includes: mobile terminal is in advance to the file configuration lock token stored；File is opened when mobile terminal receives
During order, obtain the lock token of described current file, and judge whether described current file locks；If locking, then perform pre-
If file protection flow process；Otherwise, file is normally opened.Needs are locked by the present invention by kernel layer at mobile terminal in advance
File make marks, when access file order arrive kernel layer, checking this document whether have labelling of locking.If it has,
Then denied access；In like manner, after file unlocks, the labelling being saved in file system after original locking, will be deleted, this document
Revert to the state of ordinary file, so that mobile terminal increases a kind of new file access quickly saving again memory source and protects
Maintaining method, brings great convenience to user.
Accompanying drawing explanation
Fig. 1 is the flow chart of the preferred embodiment of present invention file access based on mobile terminal guard method.
Fig. 2 is present invention file access based on mobile terminal guard method file lock locking/unlocking schematic flow sheet.
Fig. 3 is the Application Example flow chart of present invention file access based on mobile terminal guard method.
Fig. 4 is the functional block diagram of the preferred embodiment of present invention file access based on mobile terminal protection system.
Detailed description of the invention
The invention discloses a kind of file access guard method based on mobile terminal, system and mobile terminal, for making this
Purpose, technical scheme and the advantage of invention are clearer, clear and definite, and the embodiment that develops simultaneously referring to the drawings is the most detailed to the present invention
Describe in detail bright.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to the flow process that Fig. 1, Fig. 1 are the preferred embodiments of present invention file access based on mobile terminal guard method
Figure.File access guard method based on mobile terminal shown in Fig. 1, including:
Step S101, mobile terminal are in advance to the file configuration lock token stored.
In the embodiment of the present invention, need arrange and store in described mobile terminal in advance file and with described file phase
Corresponding attribute information, described attribute information includes: file name, file store path and the lock token of described file,
Described lock token includes: locks and unlocks.
Further, described step S101 specifically includes:
S11, mobile terminal-opening, be simultaneously used for carrying out file the Daemon process initiation of lock/unlock；
S12, when described mobile terminal opens certain application program, described application program and described Daemon process are set up even
Connect；
The file and the attribute information corresponding with described file that need lock/unlock are sent extremely by S13, described application program
Daemon process；
S14, described Daemon process call mobile terminal kernel layer interface, and connect to the transmission of described mobile terminal kernel layer
The described file received and the attribute information corresponding with described file；
Nodal community flag bit corresponding in file system residing for described file is entered by S15, described mobile terminal kernel layer
Row locks set or unblock is empty operation.
As a example by the mobile phone of Android system, user file is typically built upon on sdcard.When accessing file, it is required for the end
Layer, i.e. linux kernel layer, open the node of file system residing for file, then verify the flag bit of file, it determines user
Whether have read-write right, if it has, could be written and read further waiting operation.The present invention based on this, for
Family needs the file locked, and directly makes marks file at kernel layer, and labelling result is saved in the middle of file system.Set up
Cheng Hou, when the order accessing file arrives kernel layer, and we can verify, whether this document has labelling of locking.If it has, then
Denied access.In like manner, after file unlocks, the labelling being saved in file system after original locking, will be deleted, this document is extensive
It is the state of ordinary file again.
The flow process arranging file lock locking/unlocking of the embodiment of the present invention is as shown in Figure 2.First, handset starting when,
One Daemon process can start therewith, and what this daemon was mainly responsible for file adds released state, and it can receive application
The order of program, and interact with kernel layer.The when of needing file lock/unlock, user operation application program, issue
Lock/unlock order.The Daemon that this application program can and start before, sets up and connects, and the mode of connection can be socket,
Or the mode of other any interprocess communications.Connection establishment success after, application program by need lock/unlock file path,
Filename, lock command, be sent to Daemon, is further processed.Meanwhile, application program can also be asked for currently to Daemon
The state of file, is in locking or released state.
Step S102, when mobile terminal receives the order opening file, obtain the lock token of described current file,
And judge whether described current file locks.
Further, described step S102 specifically includes:
S21, mobile terminal receive application program and open the order of file；
S22, described order arrive mobile terminal kernel layer, described mobile terminal kernel layer according to current file path and
File name, searches the nodal community flag bit of described current file；
S23, according to described nodal community flag bit judge described current file whether lock.
That is, after Daemon receives utility command, can call the interface of kernel layer, this interface can provide with kernel
Standard interface, or added voluntarily by developer.By this interface, transmit filename and path to kernel, lock,
Unlock, obtain the order of file locking state.Afterwards, the logical process of kernel layer is triggered.By this document at affiliated literary composition
In part system, corresponding nodal community flag bit, carry out set or remove (set of locking unlocks and is empty).This attribute can make
The existing flag bit provided by file system, it is also possible to added by developer oneself.If what upper strata issued is inquiry state life
Order, then Returning mark position information.
If step S103 locks, then perform default file protection flow process；Otherwise, file is normally opened.
Further, described step S103 specifically includes:
If S31 detects that the nodal community flag bit of described current file is set, then interrupt opening file command, and pass through
Locked for current file message is shown on mobile terminal screen by push-mechanism；
If S32 detects that the nodal community flag bit of described current file, for being empty, the most normally opens file.
That is, after file locking is arranged successfully, if user needs to access locked file, then authority will be triggered
The flow process of checking, specifically includes: if it find that marker bit does not has set, then show that this document is unlocked, simply ordinary file,
Then continue the flow processing according to ordinary file；If it find that set, then show that this document is locked, then interrupt ensuing
Operation, and return the error code not having access rights, meanwhile, drive layer can report this thing to the framework layer of Android mobile phone
Part, event should comprise the information such as filename, path, lock-out state；Need to supervise at certain service of framework layer always
Listen the event of such file locking.Upon receipt of event, then (message pushes away to need to utilize the notification mechanism of mobile phone
Send mechanism), report the locked fact of file to user interface.
Below by by concrete Application Example, the present invention will be further described.Fig. 3 is that the present invention is based on mobile terminal
The Application Example schematic diagram of file access guard method.As it is shown on figure 3, include:
S301, application program open file；Such as, user needs to open photo by Photo Browser；
S302, the open order of execution file system driver；First Photo Browser browsing pictures program must be ordered by open
This document is opened in order, after kernel is arrived in open order, triggers the open method of kernel layer；
S303, the flag bit of detection file locking；
Whether S304, judgement this document lock；The most then enter step S306, otherwise, enter step S305；
S305, file non-locking detected, then continue operation as ordinary file, enter step S309；That is, if it find that labelling
Position does not has set, then shows that this document is unlocked, simply ordinary file, then continues the flow processing according to ordinary file；
S306, detect that file has locked, then abort operation, return the notice not having authority；That is, if it find that set, that
Show that this document is locked, then interrupt opening the order of file；
The locked notice of S307, report file；Mobile phone drives layer can report this event to framework layer, and event should comprise
Filename, path, the information such as lock-out state；
S308, by locked for file message push, inform user；
S309, operation terminate.
The embodiment of the present invention is the file access protective measure taked to prevent the locked file of user writable, as
Fruit needs to protect file maliciously not deleted, then basic procedure is consistent with flow process shown in Fig. 3, simply in kernel layer, needs
To verify the mark of file locking in mobile phone unlink method, remaining is identical with the logic in read-write flow process, repeats no more.
Therefore, the present invention, compared with traditional file safe cabinet, has the advantage that
(1) memory space need not additionally be taken；
(2) save and encrypt/decipher the required plenty of time；
(3) need not change the position of original document；
(4) file can be locked.
Based on above-described embodiment, the present invention also provides for a kind of file access based on mobile terminal protection system, such as Fig. 4 institute
Show, including:
The pre-storing module of fileinfo 100, for arrange and store in described mobile terminal in advance file and with described file
Corresponding attribute information, described attribute information includes: the locking mark of file name, file store path and described file
Note, described lock token includes: locks and unlocks；As detailed above.
Locking module 200 in advance, for mobile terminal in advance to the file configuration lock token stored；Concrete as above institute
State.
Locking determination module 300, for when mobile terminal receives the order opening file, obtains described current file
Lock token, and judge whether described current file locks；As detailed above.
File protection module 400, if for locking, then performs default file protection flow process；Otherwise, file is normally opened；
As detailed above.
Further, the described module 200 of locking in advance specifically includes:
Daemon process initiation unit, for mobile terminal-opening, the Daemon being simultaneously used for carrying out file lock/unlock enters
Cheng Qidong；As detailed above.
Connection establishment unit, for when described mobile terminal opens certain application program, described application program is with described
Daemon process is set up and is connected；As detailed above.
Fileinfo the first transmitting element, will need the file of lock/unlock and with described for described application program
The corresponding attribute information of file sends to Daemon process；As detailed above.
Fileinfo the second transmitting element, calls mobile terminal kernel layer interface for described Daemon process, and to
Described mobile terminal kernel layer sends the described file and the attribute information corresponding with described file received；The most as above
Described.
Set/be empty unit, for described mobile terminal kernel layer by corresponding in the file system residing for described file
Nodal community flag bit carry out locking set or unblock is empty operation；As detailed above.
Further, described locking determination module 300 specifically includes:
File Open order unit, receives application program for mobile terminal and opens the order of file；As detailed above.
Flag bit searches unit, arrives mobile terminal kernel layer, described mobile terminal kernel layer for described order
According to current file path and file name, search the nodal community flag bit of described current file；As detailed above.
According to described nodal community flag bit, file locking identifying unit, for judging whether described current file locks；
As detailed above.
Descending updating block, for according to predetermined period to user's facial information and users service needs keyword according to
Join number of success row descending to update；As detailed above.
Further, described file protection module 400 specifically includes:
File Open interrupt location, if being set for the nodal community flag bit of described current file being detected, then interrupts beating
Open file order, and by push-mechanism, locked for current file message is shown on mobile terminal screen；The most as above
Described.
Unit normally opened by file, if for detect the nodal community flag bit of described current file for being empty, the most just
Often open file；As detailed above.
Further, the present invention also provides for the embodiment of a kind of mobile terminal, and the mobile terminal described in the present embodiment includes
File access based on mobile terminal protection system described above.
In sum, a kind of file access guard method based on mobile terminal provided by the present invention, system and movement
Terminal, described method specifically includes: mobile terminal is in advance to the file configuration lock token stored；Beat when mobile terminal receives
During the order of open file, obtain the lock token of described current file, and judge whether described current file locks；If locking,
Then perform default file protection flow process；Otherwise, file is normally opened.The present invention is by right at the kernel layer of mobile terminal in advance
The file locked is needed to make marks, when the order accessing file arrives kernel layer, and whether checking this document has labelling of locking.
If it has, then denied access；In like manner, after file unlocks, the labelling being saved in file system after original locking, will be deleted
Removing, this document reverts to the state of ordinary file, so that mobile terminal increases a kind of new memory source of saving the most again
File access guard method, brings great convenience to user.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Protect scope.
Claims (10)
1. a file access guard method based on mobile terminal, it is characterised in that include step:
S1, mobile terminal are in advance to the file configuration lock token stored；
S2, when mobile terminal receives the order opening file, obtain the lock token of described current file, and judge described
Whether current file locks；
If S3 locks, then perform default file protection flow process；Otherwise, file is normally opened.
File access guard method based on mobile terminal the most according to claim 1, it is characterised in that described step S1
Further comprise the steps of: before
S0, in described mobile terminal, arrange and store file and the attribute information corresponding with described file in advance, described
Attribute information includes: file name, file store path and the lock token of described file, and described lock token includes: on
Lock and unblock.
File access guard method based on mobile terminal the most according to claim 2, it is characterised in that described step S1
Specifically include step:
S11, mobile terminal-opening, be simultaneously used for carrying out file the Daemon process initiation of lock/unlock；
S12, when described mobile terminal opens certain application program, described application program and described Daemon process are set up even
Connect；
The file and the attribute information corresponding with described file that need lock/unlock are sent extremely by S13, described application program
Daemon process；
S14, described Daemon process call mobile terminal kernel layer interface, and connect to the transmission of described mobile terminal kernel layer
The described file received and the attribute information corresponding with described file；
Nodal community flag bit corresponding in file system residing for described file is entered by S15, described mobile terminal kernel layer
Row locks set or unblock is empty operation.
File access guard method based on mobile terminal the most according to claim 3, it is characterised in that described step S2
Specifically include step:
S21, mobile terminal receive application program and open the order of file；
S22, described order arrive mobile terminal kernel layer, described mobile terminal kernel layer according to current file path and
File name, searches the nodal community flag bit of described current file；
S23, according to described nodal community flag bit judge described current file whether lock.
File access guard method based on mobile terminal the most according to claim 4, it is characterised in that described step S3
Specifically include step:
If S31 detects that the nodal community flag bit of described current file is set, then interrupt opening file command, and pass through
Locked for current file message is shown on mobile terminal screen by push-mechanism；
If S32 detects that the nodal community flag bit of described current file, for being empty, the most normally opens file.
6. file access based on a mobile terminal protection system, it is characterised in that including:
The pre-storing module of fileinfo, for arranging and store file and relative with described file in advance in described mobile terminal
The attribute information answered, described attribute information includes: file name, file store path and the lock token of described file, institute
State lock token to include: lock and unlock；
Lock module in advance, for mobile terminal in advance to the file configuration lock token stored；
Locking determination module, for when mobile terminal receives the order opening file, obtains the locking of described current file
Labelling, and judge whether described current file locks；
File protection module, if for locking, then performs default file protection flow process；Otherwise, file is normally opened.
File access based on mobile terminal protection system the most according to claim 6, it is characterised in that described lock in advance
Module specifically includes:
Daemon process initiation unit, for mobile terminal-opening, the Daemon being simultaneously used for carrying out file lock/unlock enters
Cheng Qidong；
Connection establishment unit, for when described mobile terminal opens certain application program, described application program is with described
Daemon process is set up and is connected；
Fileinfo the first transmitting element, for described application program by need lock/unlock file and with described file
Corresponding attribute information sends to Daemon process；
Fileinfo the second transmitting element, calls mobile terminal kernel layer interface for described Daemon process, and to described
Mobile terminal kernel layer sends the described file and the attribute information corresponding with described file received；
Set/be empty unit, for described mobile terminal kernel layer by joint corresponding in the file system residing for described file
Point attribute mark position carries out locking set or unblock is empty operation.
File access based on mobile terminal protection system the most according to claim 7, it is characterised in that described locking judges
Module specifically includes:
File Open order unit, receives application program for mobile terminal and opens the order of file；
Flag bit search unit, for described order arrive mobile terminal kernel layer, described mobile terminal kernel layer according to
Current file path and file name, search the nodal community flag bit of described current file；
According to described nodal community flag bit, file locking identifying unit, for judging whether described current file locks.
File access based on mobile terminal protection system the most according to claim 8, it is characterised in that described file is protected
Module specifically includes:
File Open interrupt location, if being set for the nodal community flag bit of described current file being detected, then interrupts beating
Open file order, and by push-mechanism, locked for current file message is shown on mobile terminal screen；
Unit normally opened by file, if for detecting that the nodal community flag bit of described current file, for being empty, is the most normally beaten
Open file.
10. a mobile terminal, it is characterised in that include the literary composition based on mobile terminal according to any one of claim 6 to 9
Part accesses protection system.
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| CN201610456297.1A CN106127071B (en) | 2016-06-22 | 2016-06-22 | File access protection method and system based on mobile terminal and mobile terminal |
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| CN201610456297.1A CN106127071B (en) | 2016-06-22 | 2016-06-22 | File access protection method and system based on mobile terminal and mobile terminal |
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| CN106874783A (en) * | 2016-12-21 | 2017-06-20 | 捷开通讯(深圳)有限公司 | A kind of file management method and mobile terminal |
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