CN104822127A - Bluetooth device, data channel real-time management and control method and system thereof - Google Patents
Bluetooth device, data channel real-time management and control method and system thereof Download PDFInfo
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- CN104822127A CN104822127A CN201510102640.8A CN201510102640A CN104822127A CN 104822127 A CN104822127 A CN 104822127A CN 201510102640 A CN201510102640 A CN 201510102640A CN 104822127 A CN104822127 A CN 104822127A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The invention provides a Bluetooth device, a data channel real-time management and control method and system thereof. The method comprises the steps that system attributes of the Bluetooth device are created in the process of system initialization; if an application program uses the Bluetooth device, the application program sends a verification request to a Bluetooth device management program; the Bluetooth device management program reads the system attributes and verifies the Bluetooth device, and returns a verification result to the application program; and the application program operates the Bluetooth device according to the verification result. The method can improve system security and control Bluetooth resources.
Description
Technical field
The present invention relates to field of information security technology, particularly relate to a kind of bluetooth equipment and the real-time management-control method of data channel thereof and system.
Background technology
At present, smart mobile phone becomes the carrier of the various information of user, stores a large amount of important information, therefore also becomes the preferred object of malicious attack.The security threat of smart mobile phone very most of from individual privacy divulge a secret and various malice is deducted fees software.These Malwares utilize the leak of authority mechanism in the past abuse authority opponent machine to attack, and What is more in Background scheduling hardware pry privacy.
The management method of existing solution Android bluetooth invoked procedure has:
1. use the rights management mechanism that existing Android operation system carries, in the BLUETOOTH authority " android.permission.BLUETOOTH " that AndroidManifest.xml document is fixed, once after being confirmed by the user installation, can control to call bluetooth equipment.
2. the Setting program using Android to provide manages bluetooth, authority is registered by application program, " android.permission.BLUETOOTH ", " android.permission.BLUETOOTH_ADMIN " now has rights of using, but application program does not possess amendment bluetooth authority, use Setting whether to open selection by user, select.
3. pair Android authority skeleton code makes amendment, realizes a kind of tactful implementation framework for different application, and such cellphone subscriber selective granted rights can come or cancel authority.
Although never Tongfang is called authority and is studied in the face of application program bluetooth equipment in above method, the authority that they are only confined to application program judges, the security threat scope that can tackle in these processes narrow.Only have the judgement of authority and all agree to or all refuse, only by judging whether the way selection of authority is installed, and cannot call manage the data channel of bluetooth equipment.As long as after user agrees to install, just have always and use the authority of bluetooth equipment also to comprise the authority using its data channel simultaneously, instead of all judge whether to have when each data channel is called to call authority, this strategy is obviously unscientific.They cannot be real-time can't manage its data channel carrying out management and control to bluetooth equipment.There is very large drawback in this traditional authorization policy pattern, meanwhile, the blue-teeth equipment management strategy of this simple coarse cannot meet our demand in a lot of scene.
Summary of the invention
The invention provides a kind of bluetooth equipment and the real-time management-control method of data channel thereof and system, to solve the technical problem that in prior art, the fail safe of bluetooth equipment management-control method is not high.
For solving the problems of the technologies described above, the invention provides a kind of bluetooth equipment and the real-time management-control method of data channel thereof, comprising:
The system property of bluetooth equipment is created in system initialization process;
When there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Make described blue-teeth equipment management program read described system property and verify described bluetooth equipment, return the result to described application program;
Described application program is made to operate described bluetooth equipment according to described the result.
Further,
Described application program comprises: bluetooth equipment enables program and remote equipment linker;
Describedly make described application program carry out operation according to described the result to described bluetooth equipment comprising:
The result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
Further, described method also comprises:
At least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
Further, described method also comprises:
The management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy is utilized to go forward side by side row relax.
Further, described method also comprises:
The system property of described blue-teeth equipment management program to described bluetooth equipment is utilized to arrange in real time.
On the other hand, the present invention also provides a kind of bluetooth equipment and the real-time managing and control system of data channel thereof, comprising:
Attribute creation module, for creating the system property of bluetooth equipment in system initialization process;
Request module, for when there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Authentication module, for making described blue-teeth equipment management program read described system property and verify described bluetooth equipment, returns the result to described application program;
Operational module, operates described bluetooth equipment according to described the result for making described application program.
Further,
Described application program comprises: bluetooth equipment enables program and remote equipment linker;
Described operational module is used for: the result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
Further, described operational module also for:
At least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
Further, described attribute creation module also for:
The management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy is utilized to go forward side by side row relax.
Further, described attribute creation module also for:
The system property of described blue-teeth equipment management program to described bluetooth equipment is utilized to arrange in real time.
The present invention is under the prerequisite ensureing security of system, the ccf layer of existing android system and application layer are modified and expanded, by controlling the data channel of Android bluetooth equipment and authorizing, the fail safe of the original Android bluetooth equipment of android system is promoted, adds new protection at the data channel invoked procedure of Android bluetooth equipment.Meanwhile, the present invention can control using the data channel of bluetooth equipment to call authority, reduce the security threat of this system platform, and can control the bluetooth resource of system from system level.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is Android Bluetooth system invocation pattern schematic diagram;
Fig. 2 is embodiment of the present invention bluetooth equipment and data channel real-time management-control method basic procedure schematic diagram thereof;
Fig. 3 is the schematic flow sheet of the embodiment of the present invention 1 bluetooth equipment and the real-time management-control method of data channel thereof;
Fig. 4 is the running schematic diagram of the embodiment of the present invention 1 bluetooth equipment and the real-time management-control method of data channel thereof;
Fig. 5 is the structural representation of the embodiment of the present invention 2 bluetooth equipment and the real-time managing and control system of data channel thereof.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Generally as follows see Fig. 1, Android Bluetooth system invocation pattern: the api provided by the routine call ccf layer of application layer obtains the example of Bluetooth adapter, then by JNI, linux kernel driving is called to C framework.After user gets Bluetooth Adapter, BluetoothDevice is utilized to use bluetooth equipment: to comprise search periphery bluetooth equipment, the function of bluetooth equipment connection etc., Bluetooth communication mainly realizes in BluetoothServerSocket, BluetoothSocket.
Communication between bluetooth equipment mainly includes four steps: bluetooth equipment is set, to find in local area network (LAN) may or the equipment of coupling, the transfer of data between connection device and equipment.Below some the required basic classes setting up bluetooth connection:
BluetoothAdapter class: represent a local Bluetooth adapter.He is the mutual entrance of all bluetooths.Utilize it can find other bluetooth equipments, inquire about the equipment bound, use known MAC Address instantiation bluetooth equipment and set up a BluetoothServerSocket (as server end) and monitor connection from other equipment.
BluetoothDevice class: the bluetooth equipment representing a far-end, uses its request far-end bluetooth equipment connect or obtain the title of far-end bluetooth equipment, address, kind and binding state.
Android Bluetooth system is top-down is divided into four levels, application layer, Java ccf layer, C ccf layer (comprising the JNI part of BlueTooth, the adaptive storehouse of BlueTooth, BlueZ storehouse) and inner nuclear layer.
The feature of the Design Mode of android system bluetooth is: only have a bluetooth example in guarantee system on the one hand, and this case application programs can obtain current system bluetooth example by Bluetooth Adapter, in guarantee system, class only has an example and this example to be easy to extraneous access, thus the convenient control to example number save system resource.And then by BlueToothJNI, the bluetooth driving of bottom is operated.After getting bluetooth example, application program can create BlueToothDevice and manage bluetooth equipment, and the driving of recycling BlueTooth Socket and bottom realizes the information transmission of bluetooth alternately.
The embodiment of the present invention provides a kind of bluetooth equipment and the real-time management-control method of data channel thereof, see Fig. 2, comprising:
Step 201: the system property creating bluetooth equipment in system initialization process;
Step 202: when there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Step 203: make described blue-teeth equipment management program read described system property and verify described bluetooth equipment, return the result to described application program;
Step 204: make described application program operate described bluetooth equipment according to described the result.
Wherein, described application program can comprise: bluetooth equipment enables program and remote equipment linker; And describedly make described application program carry out operation according to described the result to described bluetooth equipment can comprising:
The result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
Wherein, described method can also comprise: at least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
Wherein, described method can also comprise: utilize the management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy to go forward side by side row relax, and the system property of described blue-teeth equipment management program to described bluetooth equipment can be utilized to arrange in real time.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of bluetooth equipment and the real-time management-control method of data channel thereof, see Fig. 3, comprising:
Step 301: the system property creating bluetooth equipment in system initialization process.
See Fig. 4, while calling the initialized init process of responsible completion system start-up course, can create and reading system attribute " persist.sys.bluetooth_prop " in the process that android system starts.After this process, normal start up system.
In init process in android system start-up course, authority is called to the bluetooth equipment of system and carry out initialization, background service simultaneously in start up system level blue-teeth equipment management program BlueToothManager performs local policy in real time, and the value of monitoring and setting " persist.sys.bluetooth_prop " realizes the real-time invoked procedure to bluetooth equipment and carries out management and control.Why choice for use system property coordinates background service to configure the value of bluetooth, and be because system property cannot be modified in application layer, so other data storage method fail safe is higher relatively, and the speed reading data is fast.Use background service to be because need to perform local policy in real time, monitor and arrange bluetooth equipment and call state.
Step 302: when the bluetooth equipment program of enabling needs to use bluetooth equipment, sends checking request to blue-teeth equipment management program, carries out verifying and operating bluetooth equipment according to the result.
After system starts, when the bluetooth equipment program of enabling needs to use bluetooth equipment, first sent request to blue-teeth equipment management program by bluetooth equipment program of enabling, and then control the opening of bluetooth equipment, closed condition by user by the bluetooth option of system.Need to audit the using state of bluetooth equipment now when user opens and closes bluetooth equipment time, if audit successfully, selected whether to open bluetooth by user.If now audit unsuccessful, user cannot obtain bluetooth equipment example, and meanwhile also carry out control by the process of the data channel setting up bluetooth equipment, bluetooth equipment now cannot use, and also cannot communicate.
Particularly, the bluetooth equipment program of enabling sends the Intent (intention) that an Action is BluetoothAdapter.ACTION_REQUEST_ENABLE, is then processed this intention by blue-teeth equipment management program.In bluetooth equipment, BlueToothAdapter is singleton pattern (namely only has and just can get example by BlueTooth Adapter), and blue-teeth equipment management class BlueToothDevice needs to be created by BlueToothAdapter.
When calling the enable () function in BlueToothAdapter, directly do not open bluetooth, but send checking request to blue-teeth equipment management program BlueToothManager, and enter the stand-by period, until BlueToothAdapter obtains the feedback information from system property.If feedback information is true, notify that the bluetooth equipment program of enabling opens bluetooth equipment by BlueToothAdapter.If return value is false, bluetooth equipment is enabled program and will directly be exited, and does not open bluetooth equipment.
Wherein, when blue-teeth equipment management program BlueToothManager receives checking request, self defined class BlueToothCheck the isForbid () function called wherein is used to obtain bluetooth equipment management and control state, isForbid () reads the value of " persist.sys.bluetooth_prop " in android system attribute SystemProperty, thus obtains the management and control state of bluetooth equipment.Again the result is now returned the program sent request.
In addition, blue-teeth equipment management program BlueToothManager is also responsible for receiving the process from the management and control strategy of the bluetooth equipment of server and localization strategy (when and where allowing to use bluetooth equipment) simultaneously.A background service is had to be responsible for these strategies to process in BlueToothManager program, and the real-time value that " persist.sys.bluetooth_prop " in android system attribute is set.
Step 303: after bluetooth equipment is opened, when remote equipment linker needs to use bluetooth equipment, sends checking request to blue-teeth equipment management program, carries out verifying and operating bluetooth equipment according to the result.
In this step, after bluetooth equipment is opened, then create a remote equipment linker BluetoothDevice, then call connect () by BlueToothDevice and create BlueToothSocket with BlueTooth Server and be connected.Now, directly do not connect, but send checking request to blue-teeth equipment management program BlueToothManager.And enter wait state, until BlueToothDevice obtains feedback information.If feedback information is true, sets up remote equipment by BlueToothDevice and connect, share RFCOMM channel.Directly will exit if return value is false, BlueToothDevice, do not set up remote equipment and connect.After cannot setting up long-range connection, bluetooth cannot communicate, thus protection mobile phone private, stop Trojan attack.
After above-mentioned 2 checkings are all passed through; just can be driven by C ccf layer and bluetooth carries out alternately; can carry out being connected with the bluetooth equipment of outside simultaneously and communicate; the two once verifies that the unsuccessful bluetooth equipment that cannot use communicates, thus the data security reaching protection mobile phone prevents the object of divulging a secret.
In whole bluetooth equipment and data channel invoked procedure management-control method thereof, need to carry out management and control to the switch (connect () of BlueToothDevice) of bluetooth equipment switch (enable () in BlueToothAdapter) and data channel, just can accomplish to carry out real-time management and control to the data channel invoked procedure of bluetooth equipment.Also bluetooth equipment cannot be used to carry out transfer of data even if rogue program opens bluetooth equipment.In this way can the safety of duplicate protection bluetooth equipment, thus prevent by privacy leakage.
Embodiment 2:
The embodiment of the present invention 2 provides a kind of bluetooth equipment and the real-time managing and control system of data channel thereof, see Fig. 5, comprising:
Attribute creation module 501, for creating the system property of bluetooth equipment in system initialization process;
Request module 502, for when there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Authentication module 503, for making described blue-teeth equipment management program read described system property and verify described bluetooth equipment, returns the result to described application program;
Operational module 504, operates described bluetooth equipment according to described the result for making described application program.
Wherein, attribute creation module 501 is connected with authentication module 503, request module 502, operational module 504 order.
Wherein, application program can comprise: bluetooth equipment enables program and remote equipment linker;
Operational module 504 may be used for: the result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
Wherein, operational module 504 can also be used for: at least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
Wherein, attribute creation module 501 can also be used for: utilize the management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy to go forward side by side row relax.
Alternatively, attribute creation module 501 can also be used for: utilize the system property of described blue-teeth equipment management program to described bluetooth equipment to arrange in real time.
By the method and system that the embodiment of the present invention provides, the data channel effectively can protecting illegal use bluetooth, to steal subscriber data and privacy, prevents privacy leakage.Bluetooth equipment and data channel thereof can be managed by the calling rule arranging bluetooth equipment simultaneously, thus prevent it from illegally being called.Specifically can reach following effect:
1. be optimized for android system in the past, the system-level management method of data channel invoked procedure increasing a kind of Android bluetooth equipment makes its support carry out equipment control to Android bluetooth equipment and its data channel.
2. under the prerequisite ensureing the fail safe of android system original Bluetooth system, integrality and stability; the ccf layer of system is optimized; ensure that the fail safe of Android bluetooth equipment invoked procedure; add the protection to its data transmission channel, duplicate protection bluetooth equipment and data channel invoked procedure thereof simultaneously.
3. bluetooth equipment in the past only has user manually to arrange its on off state, embodiment of the present invention method is that Android provides a kind of policy management method, use this method can by time segment, and point place manages Android bluetooth equipment and data channel invoked procedure thereof.
4. blue-teeth equipment management program BlueToothManager is positioned at system framework layer, effectively ensure that integrality and the fail safe of Managed Solution, and effectively can prevent Android wooden horse and viral invasion.
5., because the use of embodiment of the present invention mechanism, only have when could Bluetooth system be used by system audit, effectively can prevent the generation of privacy leakage and the leakage of a state or party secret.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. bluetooth equipment and the real-time management-control method of data channel thereof, is characterized in that, comprising:
The system property of bluetooth equipment is created in system initialization process;
When there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Make described blue-teeth equipment management program read described system property and verify described bluetooth equipment, return the result to described application program;
Described application program is made to operate described bluetooth equipment according to described the result.
2. bluetooth equipment according to claim 1 and the real-time management-control method of data channel thereof, is characterized in that:
Described application program comprises: bluetooth equipment enables program and remote equipment linker;
Describedly make described application program carry out operation according to described the result to described bluetooth equipment comprising:
The result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
3. bluetooth equipment according to claim 2 and the real-time management-control method of data channel thereof, it is characterized in that, described method also comprises:
At least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
4. bluetooth equipment according to any one of claim 1 to 3 and the real-time management-control method of data channel thereof, it is characterized in that, described method also comprises:
The management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy is utilized to go forward side by side row relax.
5. bluetooth equipment according to any one of claim 1 to 3 and the real-time management-control method of data channel thereof, it is characterized in that, described method also comprises:
The system property of described blue-teeth equipment management program to described bluetooth equipment is utilized to arrange in real time.
6. bluetooth equipment and the real-time managing and control system of data channel thereof, is characterized in that, comprising:
Attribute creation module, for creating the system property of bluetooth equipment in system initialization process;
Request module, for when there is application program and using bluetooth equipment, described application program sends checking request to blue-teeth equipment management program;
Authentication module, for making described blue-teeth equipment management program read described system property and verify described bluetooth equipment, returns the result to described application program;
Operational module, operates described bluetooth equipment according to described the result for making described application program.
7. bluetooth equipment according to claim 6 and the real-time managing and control system of data channel thereof, is characterized in that:
Described application program comprises: bluetooth equipment enables program and remote equipment linker;
Described operational module is used for: the result obtained when the described bluetooth equipment program of enabling is true time, opens described bluetooth equipment; When obtained the result is not true time, do not open described bluetooth equipment and directly exit described bluetooth equipment and enable program;
After described bluetooth equipment is opened, the result that described remote equipment linker obtains is true time, sets up remote equipment be connected with described bluetooth equipment; When obtained the result is not true time, do not set up remote equipment with described bluetooth equipment and be connected and directly exit described remote equipment linker.
8. bluetooth equipment according to claim 7 and the real-time managing and control system of data channel thereof, is characterized in that, described operational module also for:
At least one the result obtained enabled in program and described remote equipment linker when described bluetooth equipment is not true time, does not communicate with described bluetooth equipment.
9. the bluetooth equipment according to any one of claim 6-8 and the real-time managing and control system of data channel thereof, is characterized in that, described attribute creation module also for:
The management and control strategy of described blue-teeth equipment management program real-time reception bluetooth equipment and localization strategy is utilized to go forward side by side row relax.
10. the bluetooth equipment according to any one of claim 6-8 and the real-time managing and control system of data channel thereof, is characterized in that, described attribute creation module also for:
The system property of described blue-teeth equipment management program to described bluetooth equipment is utilized to arrange in real time.
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