CN117453261A - Equipment upgrade data verification methods, storage media and electronic equipment - Google Patents

Abstract

The invention discloses an upgrade data verification method of equipment, a storage medium and electronic equipment. Wherein the method comprises the following steps: in response to receiving an instruction for upgrading the target equipment, controlling the target equipment to receive a plurality of first upgrade packages corresponding to target upgrade data, and storing the plurality of first upgrade packages into a cache area of the target equipment; in the upgrading process of the target equipment, a plurality of first upgrading packets are called, cyclic redundancy check is carried out on the plurality of first upgrading packets, and a first check result is obtained, wherein the first check result is used for indicating whether the plurality of first upgrading packets pass the check; and responding to the first check result to indicate that the plurality of first upgrade packages pass the check, calling first upgrade data formed by the plurality of first upgrade packages, and performing cyclic redundancy check on the first upgrade data to obtain a second check result, wherein the second check result is used to indicate whether the first upgrade data pass the check. The invention solves the technical problem of lower equipment upgrading efficiency in the related technology.

Description

Equipment upgrade data verification methods, storage media and electronic equipment

Technical field

The present invention relates to the field of equipment upgrade verification. Specifically, it relates to an equipment upgrade data verification method, a storage medium and an electronic device.

Background technique

In related fields, the software or system used by the device needs to be updated, upgraded or replaced to improve the performance, functionality or security of the device.

When upgrading the device online, there is a process of receiving, storing, reading, and transferring the upgrade package. When factors such as unstable power supply and environmental electromagnetic interference exist, the actual written running program will be incorrect and the program operation will fail. Hidden danger: Currently, the relevant technology lacks a verification method for the upgrade data during the equipment upgrade process, resulting in technical problems such as low equipment upgrade efficiency.

In response to the above problems, no effective solution has yet been proposed.

Contents of the invention

Embodiments of the present invention provide a device upgrade data verification method, a storage medium and an electronic device, so as to at least solve the technical problem of low device upgrade efficiency in related technologies.

According to an aspect of an embodiment of the present invention, a method for verifying upgrade data of a device is provided, including: in response to receiving an upgrade instruction to upgrade a target device, controlling the target device to receive a plurality of first upgrades corresponding to the target upgrade data. package, and save multiple first upgrade packages to the cache area of the target device; during the upgrade process of the target device, retrieve multiple first upgrade packages, perform cyclic redundancy checks on the multiple first upgrade packages, and obtain the first Verification result, wherein the first verification result is used to indicate whether the plurality of first upgrade packages have passed verification; in response to the first verification result being used to indicate that the plurality of first upgrade packages have passed verification, retrieve the plurality of first upgrade packages The first upgrade data composed of an upgrade package is subjected to cyclic redundancy check on the first upgrade data to obtain a second check result, where the second check result is used to indicate whether the first upgrade data passes the check.

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data verification passes, writing the first upgrade data from the cache area of the target device to the target device. The running area obtains the second upgrade data, and performs a cyclic redundancy check on the second upgrade data to obtain a third verification result, where the third verification result is used to indicate whether the second upgrade data passes the verification; in response to the third The verification result is used to indicate that the second upgrade data verification has not passed. Rewrite the first upgrade data in the cache area to the running area to obtain the third upgrade data; retrieve the third upgrade data in the running area, and compare the third upgrade data Perform a cyclic redundancy check to obtain a fourth verification result, where the fourth verification result is used to indicate whether the third upgrade data has passed the verification; responding to the third verification result is used to indicate that the second upgrade data has passed the verification , control the target device to run the second upgrade data, and determine that the target device is successfully upgraded.

Optionally, the upgrade data verification method of the device further includes: in response to the fourth verification result indicating that the third upgrade data has not passed verification, performing the step of moving the first upgrade data in the cache area to the running area. , until the third upgrade data retrieved from the operating area passes the verification; in response to the fourth verification result indicating that the third upgrade data verification passes, control the target device to run the third upgrade data, and determine that the target device is upgraded successfully .

Optionally, the upgrade data verification method of the device further includes: in response to the number of executions of moving the first upgrade data in the cache area to the running area being greater than the preset number of executions, prohibiting execution of moving the first upgrade data in the cache area. Steps to the running area and control the target device to enter the preset mode, where the preset mode is used to wait for new upgrade data.

Optionally, performing a cyclic redundancy check on the plurality of first upgrade packages to obtain a first verification result includes: removing the first check codes in the plurality of first upgrade packages to obtain a plurality of second upgrade packages; Generate a first polynomial based on a plurality of second upgrade packages; perform a division operation on the plurality of first upgrade packages and the first polynomial to obtain a first operation result, where the first operation result is used to represent the result obtained by the division operation Whether the first remainder is a preset value; in response to the first operation result indicating that the first remainder is a preset value, it is determined that the first verification result is that multiple first upgrade packages pass the verification; in response to the first operation The result is used to indicate that the first remainder is not a preset value, and it is determined that the first verification result is that the verification of multiple first upgrade packages has failed.

Optionally, the upgrade data verification method of the device further includes: in response to the first verification result indicating that multiple first upgrade package verifications have failed, aborting the upgrade process of the target device.

Optionally, performing a cyclic redundancy check on the first upgrade data to obtain the second verification result includes: removing the second check code in the first upgrade data to obtain the third upgrade data; and generating the third upgrade data based on the third upgrade data. A second polynomial; perform a division operation on the first upgrade data and the second polynomial to obtain a second operation result, where the second operation result is used to indicate whether the second remainder obtained by the division operation is a preset value; In response to the second operation result indicating that the second remainder is a preset value, it is determined that the second verification result is that the first upgrade data verification passes; in response to the second operation result indicating that the second remainder is not a preset value , it is determined that the first verification result is that the first upgrade data verification fails.

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data has not passed verification, controlling the target device to run the historical upgrade data, and determining that the target device fails to upgrade.

According to another aspect of the embodiment of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein the upgrade data of the above-mentioned device is executed in the processor of the device where the program is run. Verification method.

According to another aspect of the embodiment of the present invention, there is also provided an electronic device, one or more processors; a storage device for storing one or more programs; when one or more programs are processed by one or more processors Execution causes one or more processors to execute the upgrade data verification method of the above device.

In the embodiment of the present invention, in response to receiving an upgrade instruction to upgrade the target device, the target device is controlled to receive multiple first upgrade packages corresponding to the target upgrade data, and save the multiple first upgrade packages to the cache area of the target device. ; During the upgrade process of the target device, multiple first upgrade packages are retrieved, and cyclic redundancy checks are performed on the multiple first upgrade packages to obtain a first verification result, where the first verification result is used to represent multiple Whether the first upgrade package passes the verification; in response to the first verification result indicating that the plurality of first upgrade packages pass the verification, the first upgrade data composed of the plurality of first upgrade packages is retrieved, and the first upgrade data is Cyclic redundancy check is performed to obtain a second verification result, where the second verification result is used to indicate whether the first upgrade data passes the verification; by comparing multiple first upgrade packages used for upgrading the target device and the first upgrade The data is sequentially subjected to cyclic redundancy check, which realizes the verification of the target upgrade data during the target device upgrade process, improves the reliability and security of the upgrade data transmission, and further ensures the integrity and accuracy of the target upgrade data. , thereby solving the technical problem of low equipment upgrade efficiency in related technologies.

Description of the drawings

The drawings described here are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a flow chart of a device upgrade data verification method according to an embodiment of the present invention;

Figure 2 is a flow chart of an optional device upgrade method according to an embodiment of the present invention;

Figure 3 is a schematic diagram of an upgrade data verification device of a device according to an embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only These are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the invention described herein are capable of being practiced in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

Example 1

According to an embodiment of the present invention, an embodiment of a device upgrade data verification method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, Also, although a logical order is shown in the flowchart diagrams, in some cases the steps shown or described may be performed in a different order than herein.

Figure 1 is a flow chart of a device upgrade data verification method according to an embodiment of the present invention. As shown in Figure 1, the method includes the following steps:

Step S102, in response to receiving an upgrade instruction to upgrade the target device, control the target device to receive multiple first upgrade packages corresponding to the target upgrade data, and save the multiple first upgrade packages to a cache area of the target device.

The above-mentioned target device may refer to a device to be upgraded or data updated. The target device has a cache area and a running area. The cache area is used to receive and temporarily store the downloaded upgrade data files, and the running area is used to store the downloaded upgrade data files. Analyze the upgrade data file and perform system upgrade or data update tasks on the target device.

The above target upgrade data may be data required by the target device for system upgrade or data update.

The above-mentioned plurality of first upgrade packages may be multiple upgrade data single packages that store target upgrade data.

The above-mentioned cache area may be an area in the target device used to temporarily store data. The cache area is usually located in the memory or storage of the device and has a small capacity.

In an optional embodiment, upgrading the software or system used by the target device can be divided into passive upgrade and active upgrade. Passive upgrade can mean that the device regularly checks whether a new firmware version is available on the upgrade server. , if there is, the firmware is automatically downloaded and upgraded. For example, passive upgrade can be used to promptly and forcefully upgrade major security vulnerabilities in the target device; active upgrade can mean that the target device will notify the user of a new data version. is available and provides the corresponding upgrade interface or guide. Users can download and install according to the instructions. Under active upgrade, users can freely choose the time and version of the upgrade. For example, active upgrade can be used to optimize the target device. Users can follow the instructions to download and install. You need to choose whether to upgrade and you can preset the time for the target device to upgrade; in this embodiment, the target device can choose to upgrade passively or actively as needed.

In an optional embodiment, when the target device receives multiple first upgrade packages corresponding to the target upgrade data, the target device may download the first upgrade packages in the order in which they arrive, with the first upgrade package arriving first being downloaded first; or selecting The first upgrade package with the smallest file size among multiple first upgrade packages is downloaded first; each first upgrade package can also be assigned a priority, and the first upgrade with a higher priority is downloaded first, which improves the target device's ability to detect multiple first upgrade packages. Download efficiency of an upgrade package.

In an optional embodiment, after receiving multiple first upgrade packages corresponding to the target upgrade data, the target device saves the multiple first upgrade packages to the cache area of the target device to facilitate subsequent downloaded upgrades. The data file is parsed to complete the system upgrade or data update task of the target device.

Step S104: During the upgrade process of the target device, a plurality of first upgrade packages are retrieved, and a cyclic redundancy check is performed on the plurality of first upgrade packages to obtain a first verification result.

The first verification result is used to indicate whether the plurality of first upgrade packages pass the verification.

The above-mentioned Cyclic Redundancy Check (CRC) may be a data verification method used to perform cyclic redundancy check on the first upgrade package and detect whether errors occur during data transmission or storage.

In an optional embodiment, before the target device performs a cyclic redundancy check on the multiple first upgrade packages, the target device may first perform a checksum on the multiple first upgrade packages, that is, the target device may perform a checksum on the multiple first upgrade packages. Each byte is added and the result is stored in a specific field. After receiving the first upgrade package, the target device will also calculate the checksum and compare it with the checksum calculated by the sender. If the two are equal, the data packet is considered to be transmitted normally; otherwise, a data transmission error is considered to have occurred. In this embodiment, the target device can delete the first upgrade package that fails the checksum and request the sender to retransmit it. For this first upgrade package, since the checksum method is simpler and faster to calculate than the cyclic redundancy check, the target device first performs the cyclic redundancy check on the multiple first upgrade packages. Package checksum can detect the first upgrade package with transmission errors in advance while using less computing power, saving the computing resources of the target device and improving the ability of the target device to verify multiple first upgrade packages. efficiency.

In an optional embodiment, performing cyclic redundancy check on multiple upgrade data single packets can timely detect errors such as bit flips, insertions, and deletions in the upgrade data single packets, and correct them to avoid errors during data transmission. Damage and errors; if the upgrade data single package is damaged or lost during transmission, the CRC check will fail, and the receiver can request to retransmit the upgrade data single package to ensure that the upgrade data single package received is consistent with the sent upgrade The single data packets are completely consistent; because the CRC algorithm has a low collision probability, even if someone tries to attack or tamper by modifying the upgraded data single packet, the CRC check will fail, and the receiver can discover in time and refuse to receive the tampered The upgrade data single packet improves the security of the upgrade data single packet received by the target device.

Through step S104, a cyclic redundancy check is first performed on each upgrade data single package received by the target device. If any upgrade data single package fails the cyclic redundancy check, the target device can request to retransmit only the upgrade data single package. package to avoid the waste of transmission resources caused by retransmitting the entire upgrade data package. Performing a cyclic redundancy check on each upgrade data single package can ensure the integrity, accuracy and security of each upgrade data single package, improving data transmission. reliability and stability.

Step S106, in response to the first verification result indicating that the plurality of first upgrade packages have passed the verification, retrieve the first upgrade data composed of the plurality of first upgrade packages, and perform a cyclic redundancy check on the first upgrade data, Get the second verification result.

The second verification result is used to indicate whether the first upgrade data passes the verification.

The above-mentioned first upgrade data may refer to an entire upgrade data package that is composed of multiple first upgrade packages and stores target upgrade data.

The above-mentioned cyclic redundancy check may be a data verification method used to perform cyclic redundancy check on the first upgrade data and detect whether errors occur during data transmission or storage.

In an optional embodiment, after ensuring that each upgrade data single packet received by the target device is correct, the target device can create a tree structure. The root node of the tree represents the entire data packet, and the data single packet is used as the root of the tree. Leaf nodes are inserted into the tree at appropriate locations based on the characteristics of a single data packet. The insertion position can be judged based on a certain attribute value of the data packet. For example, sort according to the sequence number or timestamp of the data packet, continue to insert other data packets, and select the appropriate position to insert into the tree based on the characteristics of the data packet. , when all single data packets are inserted into the tree, the entire data packet is composed. The nodes in the tree can be combined in a certain order by traversing the tree to form a complete data packet. Things to note Yes, the tree insertion process needs to be judged and sorted based on the characteristics of single data packets to ensure the integrity and correctness of the data packets. Through the above steps, the target device can combine multiple first upgrade packages into the first upgrade data.

In an optional embodiment, after ensuring that the upgrade data packets received by the target device are correct, the target device combines the upgrade data packets to obtain the entire upgrade data packet. Since the upgrade data packets are combined to obtain Errors may occur during the entire upgrade data package, resulting in errors in the target upgrade data contained in the entire upgrade data package. It is necessary to perform a cyclic redundancy check on the entire upgrade data package. Performing a cyclic redundancy check on the entire upgrade data package can This further enhances data security and reduces the risk of data being maliciously tampered with or destroyed, thus ensuring the integrity and accuracy of target upgrade data.

Through step S106, the reliability and security of data transmission are improved by performing cyclic redundancy check on the first upgrade data, further ensuring the integrity and accuracy of the target upgrade data.

In the embodiment of the present invention, in response to receiving an upgrade instruction to upgrade the target device, the target device is controlled to receive multiple first upgrade packages corresponding to the target upgrade data, and save the multiple first upgrade packages to the cache area of the target device. ; During the upgrade process of the target device, multiple first upgrade packages are retrieved, and cyclic redundancy checks are performed on the multiple first upgrade packages to obtain a first verification result, where the first verification result is used to represent multiple Whether the first upgrade package passes the verification; in response to the first verification result indicating that the plurality of first upgrade packages pass the verification, the first upgrade data composed of the plurality of first upgrade packages is retrieved, and the first upgrade data is Cyclic redundancy check is performed to obtain a second verification result, where the second verification result is used to indicate whether the first upgrade data passes the verification; by comparing multiple first upgrade packages used for upgrading the target device and the first upgrade The data is sequentially subjected to cyclic redundancy check, which realizes the verification of the target upgrade data during the target device upgrade process, improves the reliability and security of the upgrade data transmission, and further ensures the integrity and accuracy of the target upgrade data. , thereby solving the technical problem of low equipment upgrade efficiency in related technologies.

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data verification passes, writing the first upgrade data from the cache area of the target device to the target device. The running area obtains the second upgrade data, and performs a cyclic redundancy check on the second upgrade data to obtain a third verification result, where the third verification result is used to indicate whether the second upgrade data passes the verification; in response to the third The verification result is used to indicate that the second upgrade data verification has not passed. Rewrite the first upgrade data in the cache area to the running area to obtain the third upgrade data; retrieve the third upgrade data in the running area, and compare the third upgrade data Perform a cyclic redundancy check to obtain a fourth verification result, where the fourth verification result is used to indicate whether the third upgrade data has passed the verification; responding to the third verification result is used to indicate that the second upgrade data has passed the verification , control the target device to run the second upgrade data, and determine that the target device is successfully upgraded.

The above-mentioned running area may refer to the main area in the target device used to store and process data. The running area usually includes the device's Random Access Memory (RAM) and the processor. The main function of the data running area is For the actual processing and operation of data, when the device executes the program, it will load the data that needs to be processed into the data running area, and perform calculations and operations through the processor.

The above-mentioned second upgrade data may refer to data obtained by writing the first upgrade data in the cache area of the target device into the running area of the target device.

The above-mentioned third upgrade data may refer to the data obtained by rewriting the first upgrade data in the cache area of the target device into the running area of the target device after the third verification result fails to pass. The third upgrade data will overwrite the original data. Some second upgrade data.

In an optional embodiment, after ensuring that the first upgrade data in the cache area of the target device is verified correctly, the first upgrade data in the cache area of the target device is written into the running area of the target device to obtain the second upgrade data. , due to possible errors in the process of writing data from the cache area to the running area, causing the second upgrade data in the target device's running area to be inconsistent with the first upgrade data in the target device's cache area, the second upgrade data needs to be The cyclic redundancy check obtains a third verification result to determine whether the second upgrade data in the operating area of the target device is correct.

In an optional embodiment, when the second upgrade data verification in the running area of the target device fails, it can be determined that an error may occur in the process of writing the first upgrade data from the cache area to the running area, causing the target The second upgrade data in the device operating area is inconsistent with the first upgrade data in the cache area of the target device. At this time, the first upgrade data in the cache area of the target device can be controlled to be rewritten into the operating area of the target device to obtain the third upgrade data. The third upgrade data will be automatically overwritten, that is, the second upgrade data in the running area of the target device will be replaced, and a cyclic redundancy check will be performed on the third upgrade data to ensure that the third upgrade data rewritten in the running area of the target device has Completeness, accuracy and security.

In another optional embodiment, after ensuring that the second upgrade data in the target device running area is verified correctly, it can be determined that the second upgrade data in the target device running area has integrity, accuracy and security. , the target device can be controlled to run the second upgrade data, thereby confirming that the target device has been upgraded successfully.

Optionally, the upgrade data verification method of the device further includes: in response to the fourth verification result indicating that the third upgrade data has not passed verification, performing the step of moving the first upgrade data in the cache area to the running area. , until the third upgrade data retrieved from the operating area passes the verification; in response to the fourth verification result indicating that the third upgrade data verification passes, control the target device to run the third upgrade data, and determine that the target device is upgraded successfully .

In an optional embodiment, when the third upgrade data verification in the running area of the target device fails, it can be determined whether the first upgrade data in the cache area is rewritten to the third upgrade data obtained in the running area or If there is an error, you can control the first upgrade data in the cache area of the target device to be written again to the running area of the target device. The data written again to the running area of the target device will overwrite the data in the original running area, and the data written again will be The data in the target device's operating area undergoes cyclic redundancy checking until the verification result passes, ensuring that the data written into the target device's operating area has integrity, accuracy, and security.

In another optional embodiment, after ensuring that the third upgrade data in the target device running area is verified correctly, it can be determined that the third upgrade data in the target device running area has integrity, accuracy and security. , the target device can be controlled to run the third upgrade data, thereby confirming that the target device has been upgraded successfully.

Optionally, the upgrade data verification method of the device further includes: in response to the number of executions of moving the first upgrade data in the cache area to the running area being greater than the preset number of executions, prohibiting execution of moving the first upgrade data in the cache area. Steps to the running area and control the target device to enter the preset mode, where the preset mode is used to wait for new upgrade data.

The above-mentioned preset execution times may be the preset maximum number of times that the first upgrade data in the cache area of the target device is repeatedly written to the running area of the target device. In this embodiment, the preset execution times may be set to 10, The preset number of executions can also take other values, which are not limited here.

The above-mentioned preset mode may be to determine that an error occurs in the first upgrade data in the cache area of the target device, to control the first upgrade data in the cache area of the target device to stop writing to the running area of the target device, and to wait for a new upgrade data packet to be transmitted.

In an optional embodiment, when the third upgrade data verification in the running area of the target device fails, the first upgrade data in the cache area in the target device will be controlled to be repeatedly written into the running area of the target device. Each time newly written data will overwrite the original data in the running area, such an upgrade may cause excessive erasing of Flash Memory (FLASH), affecting the life of the flash memory. The third upgraded data in the running area of the target device If the verification never passes, it may be that there is an error in the first upgrade data in the cache area of the target device. The first upgrade data that controls the cache area in the target device is repeatedly written to the running area of the target device, which may cause a program deadlock.

In an optional embodiment, when the third upgrade data verification in the target device's running area fails and the first upgrade data in the cache area of the target device is repeatedly written to the target device's running area more than a predetermined number of times, When the number of executions is set, the first upgrade data in the cache area of the target device is controlled to stop writing to the running area of the target device, and the target device is controlled to enter the preset mode, effectively avoiding the repeated writing of the first upgrade data in the cache area of the target device. Program deadlocks and excessive overwriting of the flash memory occur in the target device's running area, thus protecting the service life of the flash memory.

Optionally, performing a cyclic redundancy check on the plurality of first upgrade packages to obtain a first verification result includes: removing the first check codes in the plurality of first upgrade packages to obtain a plurality of second upgrade packages; Generate a first polynomial based on a plurality of second upgrade packages; perform a division operation on the plurality of first upgrade packages and the first polynomial to obtain a first operation result, where the first operation result is used to represent the result obtained by the division operation Whether the first remainder is a preset value; in response to the first operation result indicating that the first remainder is a preset value, it is determined that the first verification result is that multiple first upgrade packages pass the verification; in response to the first operation The result is used to indicate that the first remainder is not a preset value, and it is determined that the first verification result is that the verification of multiple first upgrade packages has failed.

In an optional embodiment, performing a cyclic redundancy check on multiple first upgrade packages may include selecting a CRC polynomial, usually using a standard polynomial, such as CRC-16 or CRC-32, to upgrade the single package data Split into bytes, initialize a 16-bit or 32-bit register to a predefined initial value, usually all 1 or all 0, where the choice of register depends on the selected CRC polynomial, and for each The byte performs the following operations: XOR the highest bit of the current byte with the highest bit of the register, shift the register to the left by one bit, and move the next bit of the current byte into the lowest bit of the register. If the highest bit of the register is 1. Then perform an XOR operation with the predefined CRC polynomial. When all bytes are processed, the remaining value in the register is the calculated CRC check value. It should be noted that the specific CRC polynomial and the initial value It may vary depending on the application's upgrade data package, so adjustments should be made as needed in actual use.

Optionally, the upgrade data verification method of the device further includes: in response to the first verification result indicating that multiple first upgrade package verifications have failed, aborting the upgrade process of the target device.

In an optional embodiment, when the first upgrade package received in the cache area of the target device fails to verify, the target device can request to retransmit the first upgrade package that fails to verify, and can temporarily suspend the upgrade process of the target device. , until the target device receives the first upgrade package that can pass the verification.

Optionally, performing a cyclic redundancy check on the first upgrade data to obtain the second verification result includes: removing the second check code in the first upgrade data to obtain the third upgrade data; and generating the third upgrade data based on the third upgrade data. a second polynomial; perform a division operation on the first upgrade data and the second polynomial to obtain a second operation result, where the second operation result is used to indicate whether the second remainder obtained by the division operation is a preset value; In response to the second operation result indicating that the second remainder is a preset value, it is determined that the second verification result is that the first upgrade data verification passes; in response to the second operation result indicating that the second remainder is not a preset value , it is determined that the first verification result is that the first upgrade data verification fails.

In an optional embodiment, performing a cyclic redundancy check on the first upgrade data may include selecting a generator polynomial, usually using a standard CRC-16 or CRC-32 generator polynomial, where the generator polynomial is a binary number, For example, the generator polynomial of CRC-16 is 0x8005, and the generator polynomial of CRC-32 is 0x04C11DB7; invert the binary representation of the generator polynomial to obtain an inverted generator polynomial; treat the upgrade packet as a binary number and represent it is a binary bit sequence; add enough zero bits to the end of the upgrade packet so that its length is the same as the binary representation of the generator polynomial; divide the upgrade packet with the inverted generator polynomial to get a remainder; The remainder is appended to the end of the original upgrade packet to form a new packet; treat the new packet as a binary number and represent it as a sequence of binary bits; add enough zero bits to the end of the new packet to Make its length the same as the binary representation of the generator polynomial; divide the new data packet with the inverted generator polynomial to get a new remainder; if the new remainder is zero, it means there is no error in the upgrade packet; if If the new remainder is not zero, it means there is an error in the upgrade packet.

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data has not passed verification, controlling the target device to run the historical upgrade data, and determining that the target device fails to upgrade.

The above historical upgrade data may be data used before the target device is upgraded.

In an optional embodiment, after ensuring that the upgrade data single packets received by the target device are correct, the target device combines the upgrade data single packets to obtain the first upgrade data. Since the upgrade data single packets are combined to obtain Errors may occur during the first upgrade data process, resulting in errors in the target upgrade data contained in the first upgrade data. Cyclic redundancy verification needs to be performed on the first upgrade data. When the first upgrade package in the cache area of the target device is verified If it fails, you can choose to control the target device's running history upgrade data. This effectively avoids the target device using incorrect data for update and upgrade, causing the target device to be unable to be used normally, and ensuring the normal operation of the target device.

In an optional embodiment, Figure 2 is a flow chart of an optional device upgrade method according to an embodiment of the present invention. As shown in Figure 2, the target device starts the upgrade process. After receiving the target After upgrading multiple single packets corresponding to the data, save the multiple single packets to the cache area of the target device; first perform a cyclic redundancy check on each upgrade data single packet received by the target device. If there is an upgrade data single packet, If the cyclic redundancy check fails, the target device can request to retransmit only the upgrade data single packet; after ensuring that the upgrade data single packets received by the target device are correct, the target device will combine the upgrade data single packets to obtain the entire upgrade. Data package, because errors may occur in the process of combining each upgrade data single package to obtain the entire upgrade data package, resulting in errors in the target upgrade data contained in the entire upgrade data package, a cyclic redundancy check needs to be performed on the entire upgrade data package.

In another optional embodiment, as shown in Figure 2, after ensuring that the entire file in the cache area of the target device is verified correctly, the upgrade process of the target device jumps to the boot sector (BOOT) , write the entire file in the cache area of the target device to the running area of the target device to obtain the second upgrade data. Since errors may occur during the process of writing data from the cache area to the running area, resulting in the second upgrade data in the running area of the target device. The upgrade data is inconsistent with the entire file in the cache area of the target device. It is necessary to perform a cyclic redundancy check on the second upgrade data to obtain a third verification result to determine whether the second upgrade data in the target device's operating area is correct.

In another optional embodiment, as shown in Figure 2, after ensuring that the second upgrade data in the target device running area is verified correctly, it can be determined that the second upgrade data in the target device running area has integrity. , accuracy and security, the target device can be controlled to run the second upgrade data, which can determine the success of the target device upgrade.

In another optional embodiment, as shown in Figure 2, when the second upgrade data verification in the running area of the target device fails, it can be determined that the entire file may be written from the cache area to the running area. An error occurs, causing the second upgrade data in the running area of the target device to be inconsistent with the entire file in the cache area of the target device. At this time, the entire file in the cache area of the target device can be controlled to be rewritten into the running area of the target device to obtain the third upgrade data. , the third upgrade data will automatically overwrite, that is, replace the second upgrade data in the operating area of the target device, and perform a cyclic redundancy check on the third upgrade data.

In another optional embodiment, as shown in Figure 2, when the third upgrade data verification in the running area of the target device fails, it can be determined that the entire file in the cache area is rewritten to the running area. The third upgrade data still contains errors. At this time, you can control the entire file in the cache area of the target device to be written to the running area of the target device again. The data written again to the running area of the target device will overwrite the data in the original running area, and the data in the original running area will be overwritten. The data written into the running area of the target device is again subjected to cyclic redundancy check until the verification result passes, ensuring that the data written into the running area of the target device has integrity, accuracy and security. After ensuring that the third upgrade data in the target device's operating area is verified correctly, it can be determined that the third upgrade data in the target device's operating area has integrity, accuracy and security, and the target device can be controlled to run the third upgrade data. It is confirmed that the target device is upgraded successfully.

In an optional embodiment, as shown in Figure 2, when the third upgrade data verification in the target device's running area fails, the entire file in the cache area of the target device will be controlled to be repeatedly written to the target device. Each time the newly written data will overwrite the original data in the running area, such an upgrade may cause excessive erasing of the Flash Memory (FLASH), affecting the life of the flash memory, and the target device running area The third upgrade data verification has never passed. It may be that there is an error in the entire file in the cache area of the target device. The entire file that controls the cache area in the target device is repeatedly written to the running area of the target device, which may cause a program deadlock.

In an optional embodiment, as shown in Figure 2, when the third upgrade data verification in the running area of the target device fails, and the entire file in the cache area of the target device is repeatedly written to the running area of the target device When the number of times is greater than the preset number of executions, the entire file in the cache area of the target device is controlled to stop writing to the running area of the target device, and the target device is controlled to enter the preset mode, which effectively avoids the entire file in the cache area of the target device being repeatedly written. Program deadlocks and excessive overwriting of the flash memory occur in the target device's running area, thus protecting the service life of the flash memory.

Example 2

According to another aspect of the embodiment of the present invention, a device for verifying upgrade data of equipment is also provided. The device can perform the method for verifying upgrade data of equipment in the above embodiment. The specific implementation method and preferred application scenarios are the same as those of the above embodiment. They are the same and will not be described in detail here.

Figure 3 is a schematic diagram of an upgrade data verification device of a device according to an embodiment of the present application. As shown in Figure 3, the device includes the following: a control module 302, a first verification module 304, and a second verification module 306.

Among them, the control module 302 is configured to respond to receiving an upgrade instruction to upgrade the target device, control the target device to receive multiple first upgrade packages corresponding to the target upgrade data, and save the multiple first upgrade packages to the cache of the target device. Area; the first verification module 304 is used to retrieve multiple first upgrade packages during the upgrade process of the target device, perform cyclic redundancy check on the multiple first upgrade packages, and obtain the first verification result, where, The first verification result is used to indicate whether the plurality of first upgrade packages have passed verification; the second verification module 306 is used to retrieve, in response to the first verification result indicating that the plurality of first upgrade packages have passed verification. The first upgrade data composed of multiple first upgrade packages is subjected to cyclic redundancy check on the first upgrade data to obtain a second verification result, where the second verification result is used to indicate whether the first upgrade data passes the verification. .

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data verification passes, writing the first upgrade data from the cache area of the target device to the target device. The running area obtains the second upgrade data, and performs a cyclic redundancy check on the second upgrade data to obtain a third verification result, where the third verification result is used to indicate whether the second upgrade data passes the verification; in response to the third The verification result is used to indicate that the second upgrade data verification has not passed. Rewrite the first upgrade data in the cache area to the running area to obtain the third upgrade data; retrieve the third upgrade data in the running area, and compare the third upgrade data Perform a cyclic redundancy check to obtain a fourth verification result, where the fourth verification result is used to indicate whether the third upgrade data has passed the verification; responding to the third verification result is used to indicate that the second upgrade data has passed the verification , control the target device to run the second upgrade data, and determine that the target device is successfully upgraded.

Optionally, the upgrade data verification method of the device further includes: in response to the fourth verification result indicating that the third upgrade data has not passed verification, performing the step of moving the first upgrade data in the cache area to the running area. , until the third upgrade data retrieved from the operating area passes the verification; in response to the fourth verification result indicating that the third upgrade data verification passes, control the target device to run the third upgrade data, and determine that the target device is upgraded successfully .

Optionally, the upgrade data verification method of the device further includes: in response to the number of executions of moving the first upgrade data in the cache area to the running area being greater than the preset number of executions, prohibiting execution of moving the first upgrade data in the cache area. Steps to the running area and control the target device to enter the preset mode, where the preset mode is used to wait for new upgrade data.

Optionally, performing a cyclic redundancy check on the plurality of first upgrade packages to obtain a first verification result includes: removing the first check codes in the plurality of first upgrade packages to obtain a plurality of second upgrade packages; Generate a first polynomial based on a plurality of second upgrade packages; perform a division operation on the plurality of first upgrade packages and the first polynomial to obtain a first operation result, where the first operation result is used to represent the result obtained by the division operation Whether the first remainder is a preset value; in response to the first operation result indicating that the first remainder is a preset value, it is determined that the first verification result is that multiple first upgrade packages pass the verification; in response to the first operation The result is used to indicate that the first remainder is not a preset value, and it is determined that the first verification result is that the verification of multiple first upgrade packages has failed.

Optionally, the upgrade data verification method of the device further includes: in response to the first verification result indicating that multiple first upgrade package verifications have failed, aborting the upgrade process of the target device.

Optionally, performing a cyclic redundancy check on the first upgrade data to obtain the second verification result includes: removing the second check code in the first upgrade data to obtain the third upgrade data; and generating the third upgrade data based on the third upgrade data. A second polynomial; perform a division operation on the first upgrade data and the second polynomial to obtain a second operation result, where the second operation result is used to indicate whether the second remainder obtained by the division operation is a preset value; In response to the second operation result indicating that the second remainder is a preset value, it is determined that the second verification result is that the first upgrade data verification passes; in response to the second operation result indicating that the second remainder is not a preset value , it is determined that the first verification result is that the first upgrade data verification fails.

Optionally, the upgrade data verification method of the device further includes: in response to the second verification result indicating that the first upgrade data has not passed verification, controlling the target device to run the historical upgrade data, and determining that the target device fails to upgrade.

Example 3

According to another aspect of the embodiment of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein the upgrade data of the above-mentioned device is executed in the processor of the device where the program is run. Verification method.

The computer storage medium in the above steps can be a medium used to store certain discontinuous physical quantities in computer memory. Computer storage media mainly include semiconductors, magnetic cores, magnetic drums, magnetic tapes, laser disks, etc. Computer-readable storage media include stored programs, which can be a set of instructions that a computer can recognize and execute, and are information tools that run on electronic computers to meet certain needs of people.

Example 4

According to another aspect of the embodiment of the present invention, there is also provided an electronic device, one or more processors; a storage device for storing one or more programs; when one or more programs are processed by one or more processors Execution causes one or more processors to execute the upgrade data verification method of the above device.

The storage device in the above steps can be a kind of sequential logic circuit, a memory component used to store data and instructions, etc., mainly used to store programs and data; the processor can be a functional unit that interprets and executes instructions, which has a unique set of functions. The operation commands can be called the instruction set of the processor, such as storage, transfer, etc. are all operations; the storage device stores computer programs, which can be a set of instructions that the computer can recognize and execute, running on the electronic computer. , an information tool that meets certain needs of people.

In the above-mentioned embodiments of the present invention, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units may be a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the units or modules may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in various embodiments of the present invention. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. that can store program code. medium.

The above are only the preferred embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can also make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.

Claims (10)

1. A device upgrade data verification method, characterized by including: In response to receiving an upgrade instruction to upgrade the target device, control the target device to receive a plurality of first upgrade packages corresponding to the target upgrade data, and save the plurality of first upgrade packages to a cache area of the target device; During the upgrade process of the target device, the plurality of first upgrade packages are retrieved, and a cyclic redundancy check is performed on the plurality of first upgrade packages to obtain a first verification result, wherein the first verification The verification result is used to indicate whether the plurality of first upgrade packages pass the verification; In response to the first verification result indicating that the plurality of first upgrade packages have passed verification, the first upgrade data composed of the plurality of first upgrade packages is retrieved, and the first upgrade data is cycled Redundant verification is performed to obtain a second verification result, where the second verification result is used to indicate whether the first upgrade data passes the verification. 2. The device upgrade data verification method according to claim 1, characterized in that the method further includes: In response to the second verification result indicating that the first upgrade data verification passed, the first upgrade data is written from the cache area of the target device to the running area of the target device to obtain the second upgrade. data, and perform a cyclic redundancy check on the second upgrade data to obtain a third verification result, wherein the third verification result is used to indicate whether the second upgrade data passes the verification; In response to the third verification result indicating that the second upgrade data verification failed, rewrite the first upgrade data in the cache area to the running area to obtain third upgrade data; Retrieve the third upgrade data of the operating area, perform a cyclic redundancy check on the third upgrade data, and obtain a fourth verification result, wherein the fourth verification result is used to represent the third upgrade Whether the data is verified; In response to the third verification result indicating that the second upgrade data verification passes, the target device is controlled to run the second upgrade data, and it is determined that the target device is upgraded successfully. 3. The device upgrade data verification method according to claim 2, characterized in that the method further includes: In response to the fourth verification result indicating that the third upgrade data has not passed the verification, the step of moving the first upgrade data in the cache area to the running area is performed until the step is started from the running area. The third upgrade data obtained through regional retrieval passes the verification; In response to the fourth verification result indicating that the third upgrade data verification has passed, the target device is controlled to run the third upgrade data, and it is determined that the target device is upgraded successfully. 4. The device upgrade data verification method according to claim 3, characterized in that the method further includes: In response to the execution number of moving the first upgrade data in the cache area to the running area being greater than the preset execution number, it is prohibited to execute the move of the first upgrade data in the cache area to the running area. Describe the steps of running the region, and control the target device to enter a preset mode, where the preset mode is used to wait for new upgrade data. 5. The upgrade data verification method of equipment according to claim 1, characterized in that, performing cyclic redundancy verification on the plurality of first upgrade packages to obtain a first verification result, including: Remove the first check codes in the plurality of first upgrade packages to obtain a plurality of second upgrade packages; Generate a first polynomial based on the plurality of second upgrade packages; Perform a division operation on the plurality of first upgrade packages and the first polynomial to obtain a first operation result, wherein the first operation result is used to indicate whether the first remainder obtained by the division operation is Default value; In response to the first operation result indicating that the first remainder is the preset value, it is determined that the first verification result is that the plurality of first upgrade packages pass the verification; In response to the first operation result indicating that the first remainder is not the preset value, it is determined that the first verification result is that the plurality of first upgrade packages have failed to pass the verification. 6. The device upgrade data verification method according to claim 1, characterized in that the method further includes: In response to the first verification result indicating that the plurality of first upgrade packages have failed to pass verification, the upgrade process of the target device is suspended. 7. The upgrade data verification method of the device according to claim 2, characterized in that, performing a cyclic redundancy check on the first upgrade data to obtain a second verification result, including: Remove the second check code in the first upgrade data to obtain third upgrade data; Generate a second polynomial based on the third upgraded data; Perform a division operation on the first upgrade data and the second polynomial to obtain a second operation result, wherein the second operation result is used to indicate whether the second remainder obtained by the division operation is a preset numerical value; In response to the second operation result indicating that the second remainder is the preset value, it is determined that the second verification result is that the first upgrade data verification passes; In response to the second operation result indicating that the second remainder is not the preset value, it is determined that the first verification result is that the first upgrade data verification has failed. 8. The device upgrade data verification method according to claim 1, characterized in that the method further includes: In response to the second verification result indicating that the first upgrade data has not passed verification, the target device is controlled to run the historical upgrade data, and it is determined that the upgrade of the target device fails. 9. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein any one of claims 1 to 7 is executed in a processor of the device where the program is run. Upgrade data verification method for the equipment described in the item. 10. An electronic device, characterized in that it includes: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors are caused to execute the upgrade data verification method of the device according to any one of claims 1 to 7.