CN112799707A - CTID (computer telephony integration) access control firmware upgrading method and system - Google Patents
CTID (computer telephony integration) access control firmware upgrading method and system Download PDFInfo
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- G06F8/65—Updates
- G06F8/658—Incremental updates; Differential updates
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Abstract
The invention provides a CTID (computer telephony integration) access control firmware upgrading method and system in the technical field of intelligent access control, wherein the method comprises the following steps: step S10, dividing the new firmware into a plurality of sub-firmware, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data; step S20, marking head identification, tail identification, length identification and block identification in corresponding sub-firmware based on the difference data; step S30, packaging each marked sub-firmware into a patch file and issuing the patch file to a server; and S40, downloading the patch file from the server by the CTID entrance guard, and after the integrity of the patch file is checked, performing upgrading operation to finish the upgrading of the CTID entrance guard firmware. The invention has the advantages that: the utilization rate of the CTID entrance guard storage space is greatly improved, and further more functions of the CTID entrance guard are expanded.
Description
Technical Field
The invention relates to the technical field of intelligent access control, in particular to a CTID access control firmware upgrading method and system.
Background
The CTID entrance guard that possesses network card verification function promptly has access guard, and the CTID entrance guard mostly adopts embedded system at present, does not set up too much memory space, generally only sets up 1MB size flash space and is used for storing program software, and program software compiles the back and generally just can occupy 400 more KB's memory space, and along with the stack of new function, the size of later stage update firmware is probably bigger, has brought the inconvenience for the firmware upgrade.
Because the storage space of the CTID access control is limited, if the flash is equally divided into two storage spaces, the firmware to be upgraded is downloaded to one of the storage spaces first and then installed (upgraded) to the other storage space, so that the size of the firmware is limited to be only half of the flash space, and the requirement of later-stage service cannot be met.
Therefore, how to provide a CTID access control firmware upgrading method and system to improve the utilization rate of the storage space of the CTID access control and further expand more functions of the CTID access control becomes a problem to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a CTID access control firmware upgrading method and system, so that the utilization rate of the CTID access control storage space is improved, and further more functions of the CTID access control are expanded.
In a first aspect, the present invention provides a CTID access control firmware upgrading method, including the following steps:
step S10, dividing the new firmware into a plurality of sub-firmware, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data;
step S20, marking head identification, tail identification, length identification and block identification in corresponding sub-firmware based on the difference data;
step S30, packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and S40, downloading the patch file from the server by the CTID entrance guard, and after the integrity of the patch file is checked, performing upgrading operation to finish the upgrading of the CTID entrance guard firmware.
Further, the step S10 is specifically:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
Further, in step S20, the header identifies a header for marking the difference data, the trailer identifies a trailer for marking the difference data, the length identifies a length for marking the difference data, and the block identifies a number for marking the sub-firmware.
Further, the step S30 specifically includes:
step S31, splicing the marked sub-firmware according to the flash address of the old firmware in sequence to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
step S32, performing DM5 calculation on the differential packet and the address data to obtain a first hash value;
and step S33, packaging the differential packet, the address data and the first hash value into a patch file, and issuing the patch file to a server.
Further, the step S40 specifically includes:
step S41, downloading the patch file from a server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
step S42, performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, passing the integrity check, and entering step S43; if not, the integrity check is not passed, and the flow is ended;
step S43, extracting difference data from the difference packet based on the head mark, the tail mark, the length mark and the block mark;
and step S44, updating the difference data into a flash of the CTID access control based on the address data, and finishing upgrading the CTID access control firmware.
In a second aspect, the invention provides a CTID access control firmware upgrading system, which includes the following modules:
the difference data comparison module is used for dividing the new firmware into a plurality of sub-firmware and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data;
a difference data marking module for marking a head identifier, a tail identifier, a length identifier and a block identifier in a corresponding sub-firmware based on the difference data;
the patch file issuing module is used for packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and the firmware upgrading module is used for downloading the patch file from the server by the CTID access control, and after the integrity of the patch file is verified, upgrading operation is carried out to complete upgrading of the CTID access control firmware.
Further, the difference data comparison module specifically comprises:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
Further, in the difference data marking module, the head identifier is used for marking a head of the difference data, the tail identifier is used for marking a tail of the difference data, the length identifier is used for marking a length of the difference data, and the block identifier is used for marking a number of the sub-firmware.
Further, the patch file publishing module specifically includes:
the differential packet and address data generation unit is used for sequentially splicing the marked sub-firmware according to the flash address of the old firmware to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
the DM5 calculating unit is used for performing DM5 calculation on the differential packet and the address data to obtain a first hash value;
and the patch file packaging unit is used for packaging the differential packet, the address data and the first hash value into a patch file and issuing the patch file to the server.
Further, the firmware upgrade module specifically includes:
the system comprises a patch file analysis unit, a server and a server, wherein the patch file analysis unit is used for downloading the patch file from the server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
the DM5 checking unit is used for performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, the integrity check is passed, and the differential data enters the differential data extracting unit; if not, the integrity check is not passed, and the flow is ended;
a difference data extraction unit for extracting difference data from the difference packet based on the header identifier, the trailer identifier, the length identifier, and the block identifier;
and the difference data updating unit is used for updating each difference data into a flash of the CTID access control based on the address data to finish the upgrading of the CTID access control firmware.
The invention has the advantages that:
through cutting apart into a plurality of sub-firmware with new firmware, the difference of contrast each sub-firmware and old firmware obtains difference data, mark head sign at corresponding sub-firmware based on difference data, tail sign, length sign and block sign, each sub-firmware packing after will marking becomes the patch file, utilize the patch file to upgrade CTID entrance guard's firmware, download whole firmware file and upgrade on for the tradition, very big reduction the size of file that needs to download, and only need very little storage space can accomplish the upgrading of CTID entrance guard's firmware, more storage spaces can be used to the storage of the program software of compiling, final very big promotion CTID entrance guard's storage space's utilization ratio, can expand more functions of CTID entrance guard.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a flowchart of a CTID access control firmware upgrading method according to the present invention.
Fig. 2 is a schematic structural diagram of a CTID access control firmware upgrading system according to the present invention.
Detailed Description
The technical scheme in the embodiment of the application has the following general idea: the new firmware is divided into the plurality of sub-firmware, difference data is obtained by comparing differences between the sub-firmware and the old firmware, the sub-firmware with the difference data is packaged into a patch file, and the CTID access control firmware is upgraded by using the patch file so as to improve the utilization rate of the CTID access control storage space and further expand more functions of the CTID access control.
Referring to fig. 1 to fig. 2, a preferred embodiment of a CTID access control firmware upgrading method according to the present invention includes the following steps:
step S10, dividing the new firmware into a plurality of sub-firmware, comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm (delta update algorithm) to obtain difference data;
step S20, marking head identification, tail identification, length identification and block identification in corresponding sub-firmware based on the difference data;
step S30, packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and S40, downloading the patch file from the server by the CTID entrance guard, and after the integrity of the patch file is checked, performing upgrading operation to finish the upgrading of the CTID entrance guard firmware.
The step S10 specifically includes:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
For example, the size of the CTID entrance guard flash is 1MB, the size of a set file is 2KB, and 512 small storage spaces of 2KB exist in the CTID entrance guard flash; the new firmware is split into several sub-firmware in the size of 2 KB.
In step S20, the header identifies a header for marking the difference data, the trailer identifies a trailer for marking the difference data, the length identifies a length for marking the difference data, and the block identifies a number for marking the sub-firmware.
The step S30 specifically includes:
step S31, splicing the marked sub-firmware according to the flash address of the old firmware in sequence to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
for example, the size of the address data is set to 512 bytes, each byte corresponds to a small storage space of 2KB in the CTID access flash in sequence, when the 5 th sub-firmware has difference data, the value of the 5 th byte in the address data is set to 1, and when the 6 th sub-firmware does not have difference data, the value of the 6 th byte in the address data is set to 0, so as to mark the address relationship corresponding to the sub-firmware having the difference data and the old firmware.
Step S32, performing DM5 calculation (information digest algorithm) on the differential packet and the address data to obtain a first hash value;
and step S33, packaging the differential packet, the address data and the first hash value into a patch file, and issuing the patch file to a server.
The step S40 specifically includes:
step S41, downloading the patch file from a server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
step S42, performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, passing the integrity check, and entering step S43; if not, the integrity check is not passed, and the flow is ended;
step S43, extracting difference data from the difference packet based on the head mark, the tail mark, the length mark and the block mark;
and step S44, updating the difference data into a flash of the CTID access control based on the address data, and finishing upgrading the CTID access control firmware. For example, if the values of the first 4 bytes in the address data are all 0, and the value of the 5 th byte is 1, the first difference data in the difference packet is extracted based on the block identifier and updated to the small storage space of the 5 th 2KB of the CTID access flash.
The invention discloses a preferable embodiment of a CTID access control firmware upgrading system, which comprises the following modules:
the difference data comparison module is used for dividing the new firmware into a plurality of sub-firmware and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm (delta update algorithm) to obtain difference data;
a difference data marking module for marking a head identifier, a tail identifier, a length identifier and a block identifier in a corresponding sub-firmware based on the difference data;
the patch file issuing module is used for packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and the firmware upgrading module is used for downloading the patch file from the server by the CTID access control, and after the integrity of the patch file is verified, upgrading operation is carried out to complete upgrading of the CTID access control firmware.
The difference data comparison module specifically comprises:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
For example, the size of the CTID entrance guard flash is 1MB, the size of a set file is 2KB, and 512 small storage spaces of 2KB exist in the CTID entrance guard flash; the new firmware is split into several sub-firmware in the size of 2 KB.
In the difference data marking module, the head identifier is used for marking the head of the difference data, the tail identifier is used for marking the tail of the difference data, the length identifier is used for marking the length of the difference data, and the block identifier is used for marking the number of the sub-firmware.
The patch file publishing module specifically comprises:
the differential packet and address data generation unit is used for sequentially splicing the marked sub-firmware according to the flash address of the old firmware to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
for example, the size of the address data is set to 512 bytes, each byte corresponds to a small storage space of 2KB in the CTID access flash in sequence, when the 5 th sub-firmware has difference data, the value of the 5 th byte in the address data is set to 1, and when the 6 th sub-firmware does not have difference data, the value of the 6 th byte in the address data is set to 0, so as to mark the address relationship corresponding to the sub-firmware having the difference data and the old firmware.
A DM5 calculating unit, configured to perform DM5 calculation (information digest algorithm) on the differential packet and the address data to obtain a first hash value;
and the patch file packaging unit is used for packaging the differential packet, the address data and the first hash value into a patch file and issuing the patch file to the server.
The firmware upgrading module specifically comprises:
the system comprises a patch file analysis unit, a server and a server, wherein the patch file analysis unit is used for downloading the patch file from the server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
the DM5 checking unit is used for performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, the integrity check is passed, and the differential data enters the differential data extracting unit; if not, the integrity check is not passed, and the flow is ended;
a difference data extraction unit for extracting difference data from the difference packet based on the header identifier, the trailer identifier, the length identifier, and the block identifier;
and the difference data updating unit is used for updating each difference data into a flash of the CTID access control based on the address data to finish the upgrading of the CTID access control firmware. For example, if the values of the first 4 bytes in the address data are all 0, and the value of the 5 th byte is 1, the first difference data in the difference packet is extracted based on the block identifier and updated to the small storage space of the 5 th 2KB of the CTID access flash.
In summary, the invention has the advantages that:
through cutting apart into a plurality of sub-firmware with new firmware, the difference of contrast each sub-firmware and old firmware obtains difference data, mark head sign at corresponding sub-firmware based on difference data, tail sign, length sign and block sign, each sub-firmware packing after will marking becomes the patch file, utilize the patch file to upgrade CTID entrance guard's firmware, download whole firmware file and upgrade on for the tradition, very big reduction the size of file that needs to download, and only need very little storage space can accomplish the upgrading of CTID entrance guard's firmware, more storage spaces can be used to the storage of the program software of compiling, final very big promotion CTID entrance guard's storage space's utilization ratio, can expand more functions of CTID entrance guard.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. A CTID entrance guard firmware upgrading method is characterized in that: the method comprises the following steps:
step S10, dividing the new firmware into a plurality of sub-firmware, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data;
step S20, marking head identification, tail identification, length identification and block identification in corresponding sub-firmware based on the difference data;
step S30, packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and S40, downloading the patch file from the server by the CTID entrance guard, and after the integrity of the patch file is checked, performing upgrading operation to finish the upgrading of the CTID entrance guard firmware.
2. The CTID access control firmware upgrading method of claim 1, characterized in that: the step S10 specifically includes:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
3. The CTID access control firmware upgrading method of claim 1, characterized in that: in step S20, the header identifies a header for marking the difference data, the trailer identifies a trailer for marking the difference data, the length identifies a length for marking the difference data, and the block identifies a number for marking the sub-firmware.
4. The CTID access control firmware upgrading method of claim 1, characterized in that: the step S30 specifically includes:
step S31, splicing the marked sub-firmware according to the flash address of the old firmware in sequence to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
step S32, performing DM5 calculation on the differential packet and the address data to obtain a first hash value;
and step S33, packaging the differential packet, the address data and the first hash value into a patch file, and issuing the patch file to a server.
5. The CTID entrance guard firmware upgrading method of claim 4, characterized in that: the step S40 specifically includes:
step S41, downloading the patch file from a server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
step S42, performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, passing the integrity check, and entering step S43; if not, the integrity check is not passed, and the flow is ended;
step S43, extracting difference data from the difference packet based on the head mark, the tail mark, the length mark and the block mark;
and step S44, updating the difference data into a flash of the CTID access control based on the address data, and finishing upgrading the CTID access control firmware.
6. The utility model provides a CTID entrance guard firmware upgrade system which characterized in that: the system comprises the following modules:
the difference data comparison module is used for dividing the new firmware into a plurality of sub-firmware and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data;
a difference data marking module for marking a head identifier, a tail identifier, a length identifier and a block identifier in a corresponding sub-firmware based on the difference data;
the patch file issuing module is used for packaging each marked sub-firmware into a patch file and issuing the patch file to a server;
and the firmware upgrading module is used for downloading the patch file from the server by the CTID access control, and after the integrity of the patch file is verified, upgrading operation is carried out to complete upgrading of the CTID access control firmware.
7. The CTID entrance guard firmware upgrade system of claim 6, characterized in that: the difference data comparison module specifically comprises:
setting a file size based on the size of the CTID entrance guard flash, dividing the new firmware into a plurality of sub-firmware based on the file size, and comparing the difference between each sub-firmware and the old firmware by using a BSDiff algorithm to obtain difference data.
8. The CTID entrance guard firmware upgrade system of claim 6, characterized in that: in the difference data marking module, the head identifier is used for marking the head of the difference data, the tail identifier is used for marking the tail of the difference data, the length identifier is used for marking the length of the difference data, and the block identifier is used for marking the number of the sub-firmware.
9. The CTID entrance guard firmware upgrade system of claim 6, characterized in that: the patch file publishing module specifically comprises:
the differential packet and address data generation unit is used for sequentially splicing the marked sub-firmware according to the flash address of the old firmware to generate a differential packet;
marking the flash address of the marked sub-firmware corresponding to the old firmware to generate address data;
the DM5 calculating unit is used for performing DM5 calculation on the differential packet and the address data to obtain a first hash value;
and the patch file packaging unit is used for packaging the differential packet, the address data and the first hash value into a patch file and issuing the patch file to the server.
10. The CTID access control firmware upgrade system of claim 9, wherein: the firmware upgrading module specifically comprises:
the system comprises a patch file analysis unit, a server and a server, wherein the patch file analysis unit is used for downloading the patch file from the server by the CTID access control, and analyzing the patch file to obtain a differential packet, address data and a first hash value;
the DM5 checking unit is used for performing DM5 calculation on the differential packet and the address data to obtain a second hash value, comparing whether the first hash value is consistent with the second hash value, if so, the integrity check is passed, and the differential data enters the differential data extracting unit; if not, the integrity check is not passed, and the flow is ended;
a difference data extraction unit for extracting difference data from the difference packet based on the header identifier, the trailer identifier, the length identifier, and the block identifier;
and the difference data updating unit is used for updating each difference data into a flash of the CTID access control based on the address data to finish the upgrading of the CTID access control firmware.
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