CN102799542B - Disk protection system of tree-form multilayer cover layer of sector increment and implementing method thereof - Google Patents
Disk protection system of tree-form multilayer cover layer of sector increment and implementing method thereof Download PDFInfo
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Abstract
The invention provides a disk protection system of a tree-form multilayer cover layer of a sector increment and an implementing method thereof. The disk protection system and the implementing method comprise a disk filter drive, a configuration information module, a current layer and a history cover layer, wherein the disk filter drive is used for implementing reading-writing redirections to writing filter data of a protected partition through the current layer and the history cover layer, the configuration information module is used for storing a configuration information structure which consists of multiple levels structures; the multiple levels of structures include a disk protection system configuration information sector, multiple cover layer information of each partition, position information of each cover layer of the partition and a layer information sector in turn; the address of the next level of structure is stored in the up one level of structure, and the tree-form hierarchical structure of multiple layers of cover layers can be analyzed only through the disk protection system configuration information sector. According to the disk protection system and the implementing method, multiple layers of covering layers are effectively organized through a configuration information structure so as to support multiple functions of the cover layers, each cover layer is of a tree-form organization structure, and the privacy and the safety of the data in each cover layer can be protected.
Description
[technical field]
The present invention relates to the tectal disk operating system of tree-like multilayer and its implementation of a kind of sector increment.
[background technology]
In the network environment of current complexity; various virus and wooden horse are ubiquitous; people are to being that the protection of significant data in operation system and operating system is more and more paid attention to; the software of protection operating system is also more and more; but along with client's applied environment becomes increasingly complex; data volume is increasing; common protection software cannot satisfy the demands at all; people wish to protect software can support the tectal function of multilayer; safety that like this can protection system, can manage again oneself data efficiently and easily.The EWF hard disk protection of Microsoft can be supported the tectal function of multilayer; make client the data of oneself can be reverted to previous state; but EWF hard disk protection only provides simple linear overlayer function; can not meet the system applies that client is more complicated, and in use can there are the following problems:
1, after the state of system is reverted to former state by EWF hard disk protection, the data of current state will be lost, if client wishes and gets back to current state and just cannot realize; Part client may wish the significant data of oneself in disk, to be hidden, the present invention can by data are deposited in current invalid overlayer realize data hide, in the time that client needs, return to the layer at data place, can obtain data, and EWF hard disk protection also cannot meet this demand;
2, EWF is in the time generating hard disk protection, in disk, must have one freely disk space set up overlayer, if cannot generate hard disk protection in the time that disk does not have free space, part client may need to re-construct a new system and could meet the condition that generates protection like this; And EWF is in the time generating memory protect, and after physical memory is used up, system meeting blue screen, is restricted the use scenes of EWF.
3, EWF hard disk protection only provides the version in Windows XP Embedded operating system, and the version moving in Windows XP and Windows 7 operating systems is not provided, and has greatly limited most users' use.
[summary of the invention]
One of the technical problem to be solved in the present invention, is to provide the tectal disk operating system of tree-like multilayer of a kind of sector increment.
The present invention solves the problems of the technologies described above one by the following technical programs:
The tectal disk operating system of tree-like multilayer of sector increment, comprises disk filtration drive, configuration information module, current layer and historical overlayer, and described historical overlayer is tree structure;
Described disk filtration drive is located under the file system layer of operating system, and is positioned under the volume of operating system, possesses the filtering function of writing of disk sector level, and the read-write of protected subregion being write to filtering data by current layer and the realization of historical overlayer is redirected; Described protected subregion is set by the user;
Described configuration information module stores one configuration information structure, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by described configuration information structure, can analyze the tectal tree-like hierarchical structure of multilayer;
The data of revising on protected subregion after described current layer starts for storage operation system, the data in current layer are interim, if do not submit the operation of current layer to, the data that operating system is restarted rear current layer can be cleared;
Described historical overlayer comprises multilayer overlayer, described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, described current effective overlayer refers to according to described configuration information structure and carries out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; When user submits current layer to, to be saved as a data incremental layer be a new overlayer to the data in current layer, and this new overlayer is current effective overlayer; In the time that user submits a certain current effective overlayer in historical overlayer to, the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module;
In the time that user selects a certain overlayer to carry out operating system reduction, in the time of system restart, described disk filtration drive reads the configuration information structure in configuration information module, the tectal data that disk filtration drive is selected user read out from overlayer, be organized into the system data that can move, restoring operation system.
Further, described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
Further, the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
Further, the storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.
Further, in described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof.
Further, user can, by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, the valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
Two of the technical problem to be solved in the present invention, is the implementation method of the tectal disk operating system of tree-like multilayer that a kind of sector increment is provided.
The present invention solves the problems of the technologies described above two by the following technical programs:
The tectal disk operating system implementation method of tree-like multilayer of sector increment, comprises the steps:
Step 10, set up overlayer space and arrange need protected subregion;
Step 20, to protected subregion write filtering data read and write be redirected, Update Table on protected subregion after os starting is stored to a current layer; If user carries out submission current layer, enter step 30, if user does not carry out submission current layer, the data in current layer empty after operating system is closed;
Step 30, to be saved the data in current layer as a data incremental layer be an overlayer, and this tectal map information is kept in a configuration information structure, and described overlayer and configuration information structure are all kept in described overlayer space; Described configuration information module stores configuration information structure, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by described configuration information structure, can analyze the tectal tree-like hierarchical structure of multilayer;
Submit current layer operation to when repeatedly carrying out, in overlayer space, preserved multiple overlayers, and preserve the dependence between each overlayer in described configuration information structure; Described multiple overlayers of preserving in overlayer space form historical overlayer, and described historical overlayer comprises multilayer overlayer; Described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, and described current effective overlayer refers to according to described configuration information structure and carry out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; According to described configuration information structure, between each overlayer, be tree-like hierarchical structure; In the time that user selects to submit a certain overlayer in historical overlayer to, execution step 40; In the time that user selects a certain overlayer to carry out operating system reduction, execution step 50;
Step 40, user select to submit to a certain overlayer in historical overlayer, and the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module;
When step 50, user select a certain overlayer to carry out operating system reduction, in the time of system restart, read the configuration information structure in configuration information module, the tectal data that user is selected read out from overlayer, be organized into the system data that can move, restoring operation system.
Further, described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
Further, the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
Further, the storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.
Further, in described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof.
Further, after described step 50, also comprise step 60: user is by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
Tool of the present invention has the following advantages:
1, the read-write of by the realization of disk filtration drive, protected subregion being write to filtering data is redirected;
2, effectively organize multilayer overlayer by configuration information structure, thereby support tectal multilayer function, each overlayer is between tree-like institutional framework and each overlayer and interdepends; Data in overlayer are the sector data of increment, and can between overlayer data, switch overlayer arbitrarily; And each tectal concrete data only have by restoring operation and just can see, thereby can protect privacy and the security of data in each overlayer;
3, by adopting the Method of Data Organization in dependent overlayer space, thereby the tectal data of multilayer do not need extra disk partition;
4, by submitting a certain overlayer to, multiple overlayers are merged, and delete merged former overlayer, by submitting data to, all data in historical overlayer are submitted in physical disk, to reduce taking overlayer space.
[brief description of the drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the reading and writing data schematic diagram of disk filtration drive of the present invention.
Fig. 2 is the schematic diagram of configuration information structure of the present invention.
Fig. 3 is the schematic diagram of layer of the present invention information sectors.
Fig. 4 is the historical tectal schematic diagram of the present invention.
Fig. 5 is the data storage organization structure in dependent overlayer of the present invention space.
Fig. 6 is the data storage organization structure in independence overlayer of the present invention space.
[embodiment]
Technical scheme one:
The tectal disk operating system of tree-like multilayer of sector increment, comprises disk filtration drive, configuration information module, current layer and historical overlayer, and described historical overlayer is tree structure;
Refer to the disk filtration drive shown in Fig. 1, described disk filtration drive is located under the file system layer of operating system, and be positioned under the volume of operating system, possess the filtering function of writing of disk sector level, the read-write of protected subregion being write to filtering data by current layer and the realization of historical overlayer is redirected; Described protected subregion is set by the user;
Refer to shown in Fig. 2, the configuration information structure of described configuration information module stores, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors composition of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by disk operating system configuration information sector, can analyze the tectal tree-like hierarchical structure of multilayer; Refer to shown in Fig. 3, in described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof.
Described sector mark: Wei Ceng information sectors, this sector of mark;
Described layer message structure: comprise father's layer that layer size and this layer rely on;
Described redirection map message structure: record the relation of redirection map information recording original address and present sector position, can find data where to be placed according to it.Described redirection map message structure comprises the information such as affiliated layer, section size, total size, and Huo Duan address, first sector is recorded in its memory location;
Described redirected message bit pattern structure: which sector redirected bitmap records was redirected, described redirected message bit pattern structure comprises the information such as affiliated layer, section size, total size, its memory address records Huo Duan address, first sector;
Described non-redirected message bit pattern structure: which sector non-redirected message bit pattern records does not need to be redirected.Described non-redirected message bit pattern structure comprises the information such as affiliated layer, section size, total size, and its memory address records Huo Duan address, first sector
Described idle bitmap message structure: which sector idle bitmap information recording is not also used, described idle bitmap message structure comprises the information such as affiliated layer, section size, total size, its memory address records Huo Duan address, first sector.
Refer to Fig. 4, the data of revising on protected subregion after described current layer starts for storage operation system, the data in current layer are interim, if do not submit the operation of current layer to, the data that operating system is restarted rear current layer can be cleared;
Described historical overlayer comprises multilayer overlayer, described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, described current effective overlayer refers to according to described configuration information structure and carries out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; When user submits current layer to, to be saved as a data incremental layer be a new overlayer to the data in current layer, and this new overlayer is current effective overlayer; In the time that user submits a certain current effective overlayer in historical overlayer to, the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module; Refer to Fig. 4, historical overlayer is illustrated: 1,2,3,4,5,6 overlayers that refer to establishment in figure, the data that user writes are being stored in the inside, after user creates 1,2,3,4 four overlayer, again recovering state is arrived to overlayer 2,5,6 two-layer overlayers are created again afterwards, therefore, overlayer 6 depends on that overlayer 5, overlayer 5 depend on overlayer 2, overlayer 2 depends on overlayer 1, and overlayer 4 depends on overlayer 3, overlayer 3 depends on overlayer 2, and overlayer 2 depends on overlayer 1.Now current layer is based on carrying out data modification on overlayer 6, therefore, having the overlayer of relation of interdependence with current layer is respectively overlayer 6, overlayer 5, overlayer 1, overlayer 2, so overlayer 6,5,2,1 is current effective overlayer, and overlayer 3, overlayer 4 and current layer are without dependence, it is current invalid overlayer.If user selects to submit to overlayer 5, the data in the data in current layer, overlayer 6, overlayer 5 become a new current effective overlayer 7 (not shown) after merging.In figure, initiation layer is that the data of initiation layer are user installation protection system data before, or the last data data afterwards of submitting to.For example, user can be kept at significant data in overlayer 3 or overlayer 4, is then reduced to overlayer 2, thereby the overlayer of preserving significant data is hidden, and has protected privacy and the security of data in overlayer.
In the time that user selects a certain overlayer to carry out operating system reduction, in the time of system restart, described disk filtration drive reads the configuration information structure in configuration information module, the tectal data that disk filtration drive is selected user read out from overlayer, be organized into the system data that can move, restoring operation system.
Described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion, does not so just need additional configuration disk partition; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
Refer to the data storage organization structure in the dependent overlayer space shown in Fig. 5, the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
Refer to the data storage organization structure in the independent overlayer space shown in Fig. 6, in figure, upper left side is 00 field, increase progressively successively from left to right, the first row rightmost is 14 fields, be 15 fields since the second row Far Left, increase progressively successively from left to right, by that analogy, the second row rightmost is 29 fields.The storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.In the time of system initialization, we resolve current effective tectal information, can obtain the initial segment of current effective covering, as Fig. 6, current effective tectal the initial segment that we obtain is 00 section, we are according to resolving the segment mark data that obtain in independent overlayer space, the data that can find 00 section of storage are 05, represent that 00 section of next section of pointing to is 05 section, and then we go to check the position of 05 section, the data that can find storage are 08, and next section is 08 section.Section after in like manner can waiting until is 13 sections, 16 sections, and the data of 16 sections are FE, represents that this section does not also use.Therefore can obtain the section that current effective overlayer comprises is 00 section, 05 section, 08 section, 13 sections, 16 sections, can in these sections, read current effective tectal data.
User can, by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, the valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
Technical scheme two:
The tectal disk operating system implementation method of tree-like multilayer of sector increment, concrete steps are as follows:
Step 10, set up overlayer space and arrange need protected subregion;
Step 20, to protected subregion write filtering data read and write be redirected, Update Table on protected subregion after os starting is stored to a current layer; If user carries out submission current layer, enter step 30, if user does not carry out submission current layer, the data in current layer empty after operating system is closed;
Step 30, to be saved the data in current layer as a data incremental layer be an overlayer, and this tectal map information is kept in a configuration information structure, and described overlayer and configuration information structure are all kept in described overlayer space; Refer to the schematic diagram of the layer information sectors shown in the configuration information structure shown in Fig. 2 and Fig. 3, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by configuration information structure, can analyze the tectal tree-like hierarchical structure of multilayer; In described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof;
Submit current layer operation to when repeatedly carrying out, in overlayer space, preserved multiple overlayers, and preserve the dependence between each overlayer in described configuration information structure; Described multiple overlayers of preserving in overlayer space form historical overlayer, and described historical overlayer comprises multilayer overlayer; Described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, and described current effective overlayer refers to according to described configuration information structure and carry out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; According to described configuration information structure, between each overlayer, be tree-like hierarchical structure; In the time that user selects to submit a certain overlayer in historical overlayer to, execution step 40; In the time that user selects a certain overlayer to carry out operating system reduction, execution step 50;
Step 40, user select to submit to a certain overlayer in historical overlayer, and the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module;
When step 50, user select a certain overlayer to carry out operating system reduction, in the time of system restart, read the configuration information structure in configuration information module, the tectal data that user is selected read out from overlayer, be organized into the system data that can move, restoring operation system;
Step 60: when user is by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, the valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
Refer to Fig. 4, historical overlayer is illustrated: 1,2,3,4,5,6 overlayers that refer to establishment in figure, the data that user writes are being stored in the inside, after user creates 1,2,3,4 four overlayer, again recovering state is arrived to overlayer 2,5,6 two-layer overlayers are created again afterwards, therefore, overlayer 6 depends on that overlayer 5, overlayer 5 depend on overlayer 2, overlayer 2 depends on overlayer 1, and overlayer 4 depends on overlayer 3, overlayer 3 depends on overlayer 2, and overlayer 2 depends on overlayer 1.Now current layer is based on carrying out data modification on overlayer 6, therefore, having the overlayer of relation of interdependence with current layer is respectively overlayer 6, overlayer 5, overlayer 1, overlayer 2, so overlayer 6,5,2,1 is current effective overlayer, and overlayer 3, overlayer 4 and current layer are without dependence, it is current invalid overlayer.If user selects to submit to overlayer 5, the data in the data in current layer, overlayer 6, overlayer 5 become a new current effective overlayer 7 (not shown) after merging.In figure, initiation layer is that the data of initiation layer are user installation protection system data before, or the last data data afterwards of submitting to.For example, user can be kept at significant data in overlayer 3 or overlayer 4, is then reduced to overlayer 2, thereby the overlayer of preserving significant data is hidden, and has protected privacy and the security of data in overlayer.
Described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
Refer to the data storage organization structure in the dependent overlayer space shown in Fig. 5, the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
Refer to the data storage organization structure in the independent overlayer space shown in Fig. 6, the storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.In the time of system initialization, we resolve current effective tectal information, can obtain the initial segment of current effective covering, as Fig. 6, current effective tectal the initial segment that we obtain is 00 section, we are according to resolving the segment mark data that obtain in independent overlayer space, the data that can find 00 section of storage are 05, represent that 00 section of next section of pointing to is 05 section, and then we go to check the position of 05 section, the data that can find storage are 08, and next section is 08 section.Section after in like manner can waiting until is 13 sections, 16 sections, and the data of 16 sections are FE, represents that this section does not also use.Therefore can obtain the section that current effective overlayer comprises is 00 section, 05 section, 08 section, 13 sections, 16 sections, can in these sections, read current effective tectal data.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (12)
1. the tectal disk operating system of tree-like multilayer of sector increment, is characterized in that: comprise disk filtration drive, configuration information module, current layer and historical overlayer, described historical overlayer is tree structure;
Described disk filtration drive is located under the file system layer of operating system, and is positioned under the volume of operating system, possesses the filtering function of writing of disk sector level, and the read-write of protected subregion being write to filtering data by current layer and the realization of historical overlayer is redirected; Described protected subregion is set by the user;
Described configuration information module stores one configuration information structure, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by described configuration information structure, can analyze the tectal tree-like hierarchical structure of multilayer;
The data of revising on protected subregion after described current layer starts for storage operation system, the data in current layer are interim, if do not submit the operation of current layer to, the data that operating system is restarted rear current layer can be cleared;
Described historical overlayer comprises multilayer overlayer, described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, described current effective overlayer refers to according to described configuration information structure and carries out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; When user submits current layer to, to be saved as a data incremental layer be a new overlayer to the data in current layer, and this new overlayer is current effective overlayer; In the time that user submits a certain current effective overlayer in historical overlayer to, the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module;
In the time that user selects a certain overlayer to carry out operating system reduction, in the time of system restart, described disk filtration drive reads the configuration information structure in configuration information module, the tectal data that disk filtration drive is selected user read out from overlayer, be organized into the system data that can move, restoring operation system.
2. the tectal disk operating system of tree-like multilayer of sector according to claim 1 increment, is characterized in that: described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
3. the tectal disk operating system of tree-like multilayer of sector according to claim 2 increment, it is characterized in that: the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
4. the tectal disk operating system of tree-like multilayer of sector according to claim 2 increment, is characterized in that: the storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.
5. the tectal disk operating system of tree-like multilayer of sector according to claim 1 increment; it is characterized in that: in described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof.
6. the tectal disk operating system of tree-like multilayer of sector according to claim 1 increment, it is characterized in that: user can be by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
7. the tectal disk operating system implementation method of the tree-like multilayer of sector increment, is characterized in that: comprise the steps:
Step 10, set up overlayer space and arrange need protected subregion;
Step 20, to protected subregion write filtering data read and write be redirected, Update Table on protected subregion after os starting is stored to a current layer; If user carries out submission current layer, enter step 30, if user does not carry out submission current layer, the data in current layer empty after operating system is closed;
Step 30, to be saved the data in current layer as a data incremental layer be an overlayer, and this tectal map information is kept in a configuration information structure, and described overlayer and configuration information structure are all kept in described overlayer space; Described configuration information module stores configuration information structure, described configuration information structure is made up of multilevel hierarchy, comprise successively many overlayers information of disk operating system configuration information sector, each subregion, each overlayer positional information and the layer information sectors of subregion, wherein, in upper level structure, store the address of next stage structure, as long as by described configuration information structure, can analyze the tectal tree-like hierarchical structure of multilayer;
Submit current layer operation to when repeatedly carrying out, in overlayer space, preserved multiple overlayers, and preserve the dependence between each overlayer in described configuration information structure; Described multiple overlayers of preserving in overlayer space form historical overlayer, and described historical overlayer comprises multilayer overlayer; Described multilayer overlayer is divided into current effective overlayer and current invalid overlayer, and described current effective overlayer refers to according to described configuration information structure and carry out recurrence, has the overlayer of relation of interdependence with current layer; Described current invalid overlayer refers to and the overlayer of current layer without dependence; According to described configuration information structure, between each overlayer, be tree-like hierarchical structure; In the time that user selects to submit a certain overlayer in historical overlayer to, execution step 40; In the time that user selects a certain overlayer to carry out operating system reduction, execution step 50;
Step 40, user select to submit to a certain overlayer in historical overlayer, and the data in the data in current layer, chosen current effective overlayer and the current effective overlayer all current effective tectal data after formulating are merged into a new current effective overlayer; Described new current effective tectal map information is updated to the configuration information structure in described configuration information module;
When step 50, user select a certain overlayer to carry out operating system reduction, in the time of system restart, read the configuration information structure in configuration information module, the tectal data that user is selected read out from overlayer, be organized into the system data that can move, restoring operation system.
8. the tectal disk operating system implementation method of the tree-like multilayer of sector according to claim 7 increment, is characterized in that: described historical overlayer and configuration information module are all arranged on independent overlayer space or are all arranged on dependent overlayer space; Described independent overlayer space be by disk freely unallocated space be organized into an available region and be used for storing the data in overlayer; Described dependent overlayer space is to organize the data for storing overlayer by dividing the free space not used in the disk of subregion; Described current layer is arranged in independent historical overlayer space or dependent overlayer space or internal memory, and in the time being arranged in internal memory, the speed that reads and writes data is faster.
9. the tectal disk operating system implementation method of the tree-like multilayer of sector according to claim 8 increment, it is characterized in that: the storage cell in described dependent overlayer space is a segment data, by being logically organized into a continuous logical segment between sector null scattered in disk, for storing overlayer data; An overlayer is made up of at least one logical segment.
10. the tectal disk operating system implementation method of the tree-like multilayer of sector according to claim 8 increment, is characterized in that: the storage cell in described independent overlayer space is a segment data; Each overlayer takies at least one section, and the data between each overlayer are separate, and the layer data of next stage depends on the layer data of upper level.
The tectal disk operating system implementation method of tree-like multilayer of 11. sector according to claim 7 increments; it is characterized in that: in described configuration information structure, described layer information sectors comprises overlayer sector mark, layer message structure, redirection map message structure and memory address thereof, is redirected message bit pattern structure and memory address, non-redirected message bit pattern structure and memory address and free space message bit pattern structure and memory address thereof.
The tectal disk operating system implementation method of tree-like multilayer of 12. sector according to claim 7 increments, it is characterized in that: after described step 50, also comprise step 60: user is by submitting to data manipulation that all data that are kept in historical overlayer are all write to redirected position in disk before, valid data in system are written in disk, and invalid data will be deleted; Carrying out after submission data manipulation, all historical overlayers all can be deleted, and operating system enters original state again; If user did not submit the operation of data to before closing disk operating system, all data in historical overlayer will lose efficacy.
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| CN106407129B (en) * | 2015-08-03 | 2019-12-06 | 四川效率源信息安全技术股份有限公司 | data extraction method of embedded security equipment |
| CN109408278B (en) * | 2017-08-15 | 2021-06-15 | 李剑春 | Data processing method and device |
| US10564894B2 (en) * | 2018-03-20 | 2020-02-18 | Microsoft Technology Licensing, Llc | Free space pass-through |
| US10592354B2 (en) | 2018-03-20 | 2020-03-17 | Microsoft Technology Licensing, Llc | Configurable recovery states |
| CN111158955B (en) * | 2019-12-30 | 2023-08-25 | 南京壹进制信息科技有限公司 | High-availability system based on volume replication and multi-server data synchronization method |
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