CN110955582A - Kernel information output method, device and equipment and readable storage medium - Google Patents
Kernel information output method, device and equipment and readable storage medium Download PDFInfo
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Abstract
The invention discloses a kernel information output method, which comprises the following steps: installing and operating an information inquiry tool; the information inquiry tool is a user mode application program with kernel access authority; acquiring and analyzing an information query instruction input by a user, and determining a target item specified by the information query instruction; acquiring target information corresponding to a target item by using an information query tool, and outputting the target information; the method includes installing and operating an information query tool in a kernel client, wherein the information query tool has kernel access authority; after the information query instruction is acquired, the specified target information is determined, and the target information is acquired and output by using the information query tool; in addition, the invention also provides a kernel information output device, equipment and a computer readable storage medium, which also have the beneficial effects.
Description
Technical Field
The present invention relates to the field of file system technologies, and in particular, to a kernel information output method, a kernel information output apparatus, a kernel information output device, and a computer-readable storage medium.
Background
The internal part of the kernel client of the file system realizes the functions of reading, writing, mounting and the like of files. When a system normally operates, some specific information in a current file system kernel, such as function delay, page cache size and the like, needs to be checked sometimes, and a log needs to be printed in the existing kernel information acquisition method, namely, the log including kernel information is printed by calling a log printing function, and then the kernel information is acquired by printing the obtained log; or a temporary script needs to be written and executed to acquire the kernel information. Because a certain time is needed for printing the log and writing the script, and the operation is complicated, the execution time required for acquiring the kernel information is long, and the operation is complicated.
Therefore, how to solve the problems of long time and complicated operation when the core information is acquired by the conventional core information acquisition method is a technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a kernel information output method, a kernel information output apparatus, a kernel information output device, and a computer-readable storage medium, which solve the problems of long time required for acquiring kernel information and complicated operation in the conventional kernel information acquisition method.
In order to solve the above technical problem, the present invention provides a kernel information output method, including:
installing and operating an information inquiry tool; the information inquiry tool is a user mode application program with kernel access authority;
acquiring and analyzing an information query instruction input by a user, and determining a target item specified by the information query instruction;
and acquiring target information corresponding to the target item by using the information query tool, and outputting the target information.
Optionally, the obtaining, by using the information query tool, target information corresponding to the target item and outputting the target information includes:
acquiring the target information in a kernel space by utilizing the information query tool;
and constructing a target structure body in the kernel space by using the target information, and sending the target structure body to a user space from the kernel space to finish the output of the target information.
Optionally, the constructing a target structure in the kernel space by using the target information includes:
acquiring a target preset structural body;
and assigning the target preset structural body by using the target information to obtain the target structural body.
Optionally, the installing and running an information query tool includes:
acquiring a tool code, and compiling the tool code to obtain the information query tool;
and operating the information inquiry tool.
Optionally, the obtaining and analyzing an information query instruction input by a user, and determining a target item specified by the information query instruction include:
acquiring and analyzing the information query instruction to obtain a target project number;
and determining the target item specified by the information query instruction by using the target item number and a preset corresponding relation.
Optionally, the obtaining and analyzing the information query instruction input by the user includes:
acquiring the information query instruction, and judging whether the information query instruction is correct or not;
if not, outputting an error notification;
and if so, analyzing the information query instruction.
Optionally, the obtaining of the information query instruction input by the user includes:
registering a character device driver;
and acquiring the information query instruction by utilizing the character device driver.
The invention also provides a kernel information output device, comprising:
the operation module is used for installing and operating the information inquiry tool; the information inquiry tool is a user mode application program with kernel access authority;
the acquisition module is used for acquiring and analyzing an information query instruction input by a user and determining a target item specified by the information query instruction;
and the output module is used for acquiring the target information corresponding to the target item by using the information query tool and outputting the target information.
The invention also provides a kernel information output device, which comprises a memory and a processor, wherein:
the memory is used for storing a computer program;
the processor is used for executing the computer program to realize the kernel information output method.
The present invention also provides a computer-readable storage medium for storing a computer program, wherein the computer program realizes the above-mentioned kernel information output method when being executed by a processor.
The kernel information output method provided by the invention is characterized in that an information inquiry tool is installed and operated; the information inquiry tool is a user mode application program with kernel access right. And acquiring and analyzing the information query instruction, and determining the target information specified by the information query instruction. And acquiring target information by using an information inquiry tool, and outputting the target information.
Therefore, the method installs and runs the information inquiry tool in the kernel client, wherein the information inquiry tool is a user mode application program and has kernel access authority. The information query instruction is analyzed after being acquired, and after the specified target information is determined, the target information is acquired and output by using the information query tool.
In addition, the invention also provides a kernel information output device, kernel information output equipment and a computer readable storage medium, and the kernel information output device, the kernel information output equipment and the computer readable storage medium also have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a kernel information output method according to an embodiment of the present invention;
fig. 2 is a flowchart of a specific kernel information output process according to an embodiment of the present invention;
FIG. 3 is a flowchart of a specific instruction parsing process according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a kernel information output apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a kernel information output device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a kernel information output method according to an embodiment of the present invention.
The method comprises the following steps:
s101: installing and operating an information inquiry tool; the information inquiry tool is a user mode application program with kernel access right.
Specifically, the kernel information output method provided by the present invention can be executed by a kernel client. The kernel client installs the information query tool in a user mode (i.e., a user space) and runs the information query tool, where the information query tool is a user mode application program having kernel access rights, and the specific content of the information query tool is not limited in this embodiment, nor is the specific installation process of the information query tool limited in this embodiment. The information query tool has the kernel access right, so that the kernel information of the kernel client can be acquired.
Specifically, when the information query tool is installed, a tool code may be obtained, and the information query tool may be obtained by compiling the tool code, and then the information query tool may be operated. Further, the embodiment does not limit the method for acquiring the tool code, for example, the user may directly upload the tool code on the kernel client, or the user may send the tool code to the kernel client through another terminal. After the tool code is acquired, a compiling instruction can be detected, a user can send the compiling instruction by clicking a compiling button, and the tool code is compiled after the compiling instruction is detected.
S102: and acquiring and analyzing an information query instruction input by a user, and determining a target item specified by the information query instruction.
The information query instruction instructs the user to query the target information, and the specific form is not limited in this embodiment. It should be noted that the information query instruction specifies a target item, and the specific information of the target item is target information. The information query instruction includes identification information of the target item, and the identification information may be information such as a number or a name of the item. The target items may be items such as function delay, page buffer size, and the like, and the corresponding target information may be 1 millisecond, 100MB, and the like. The present embodiment does not limit the number of target items in one information query instruction, and one information query instruction may only include one target item, or may include a plurality of target items. Specifically, when the project name is used as the identification information, the information query instruction may be ikc-admin-show _ log _ level, where ikc-admin is an information query tool, and log _ level is a log level, so that the instruction may obtain log level information.
The information query instruction is input by a user, and the user can directly input the information query instruction on the kernel client, or the information query instruction can be input on other terminals and then sent to the kernel client by the other terminals. There are many methods for inputting the information query command by the user, for example, the information query command may be manually input, or the target item to be queried may be clicked on another terminal or a kernel client, and then the query button may be clicked to generate the information query command. After the kernel client side obtains the information query instruction, the kernel client side analyzes the information query instruction, and the target item specified by the information query instruction can be determined. The embodiment does not limit a specific analysis method, and the analysis method may correspond to a generation method of the information query instruction.
Further, in order to reduce the length of the information query instruction, in an embodiment of the present invention, it is preferable to use the item number as the identification information in the information query instruction. Specifically, each item may be numbered, and the correspondence between the item and the number, that is, the preset correspondence, may be locally stored. When an information query instruction is generated, the target item number is put into the information query instruction, and the information query instruction is obtained and then analyzed to obtain the target item number. And determining the target item specified by the information query instruction by using the target item number and the preset corresponding relation.
S103: and acquiring target information corresponding to the target item by using an information query tool, and outputting the target information.
After the target item is determined, the information query tool is used for acquiring the target information corresponding to the target item, and the information query tool has kernel access right, so that the kernel information of the kernel client can be directly acquired. After the target information corresponding to the target item is obtained, the target information is output, for example, the target information may be displayed on a kernel client, and when the user sends an information query instruction to the kernel client by using another terminal, the target information may also be output to a terminal used by the user so as to be displayed on the terminal of the user.
By applying the kernel information output method provided by the embodiment of the invention, the information inquiry tool is installed and operated in the kernel client, and the information inquiry tool is a user mode application program and has kernel access authority. The information query instruction is analyzed after being acquired, and after the specified target information is determined, the target information is acquired and output by using the information query tool.
Based on the above embodiment of the present invention, a specific kernel information output process will be described in the embodiment of the present invention, that is, the step S103 will be specifically described. Referring to fig. 2, fig. 2 is a flowchart of a specific kernel information output process according to an embodiment of the present invention, including:
s201: and acquiring target information in the kernel space by using an information query tool.
And after the target item is determined, acquiring target information in the kernel space by using an information query tool. Specifically, the information query tool has kernel access rights, so that the kernel space of the kernel client can be accessed, and in the process of accessing the kernel space, all kernel information can be traversed to obtain target information corresponding to the target item.
S202: and constructing a target structure body in the kernel space by using the target information, and sending the target structure body to the user space from the kernel space to finish the output of the target information.
After the target information is obtained, the target structure is constructed in the kernel space by using the target information through an information query tool, and the target structure is sent to the user space from the kernel space, so that the target information is output. The embodiment does not limit the specific form of the object structure, and the form of the object structure and the number of the object items (i.e., the number of the object information) are related to specific contents. And after the target structure is obtained, sending the target structure to a user space to finish the output of the target information. After the target structure is sent to the user space, the target structure can be analyzed so as to obtain target information, and the target information is displayed.
Further, one or more preset structures may be prestored, and after the target item is determined and the target information is obtained, the target preset structure is determined and obtained according to the actual situation, for example, the target preset structure may be selected according to the number of the target item; or the target preset structural body may be selected according to the kind of the target information. And after the target preset structural body is obtained, assigning the target preset structural body by using the target information, and obtaining the target structural body after the assignment is finished.
Further, when the user sends an information query instruction to the kernel client through other terminals, the target information can be sent to the terminal sending the information query instruction by the user, and then the output of the target information is completed.
Based on the above embodiments of the present invention, a specific instruction parsing process will be described in the embodiments of the present invention, that is, a step S102 is specifically described, please refer to fig. 3, where fig. 3 is a flowchart of a specific instruction parsing process provided in the embodiments of the present invention, and the flowchart includes:
s301: and acquiring an information query instruction, and judging whether the information query instruction is correct or not.
In the embodiment of the present invention, after the information query instruction is obtained, whether the information query instruction is correct or not can be determined, and it should be noted that whether the information query instruction is correct or not can be determined from multiple aspects, for example, whether the format of the information query instruction is correct or not can be determined, or a validity detection mechanism can be introduced, identity information of a sender is embedded in the information query instruction, whether the sender of the information query instruction has authority to query kernel information or not is determined by using the identity information, and if the sender has the authority to query kernel information, the information query instruction is correct. After the information query instruction is obtained, various judgments can be performed on the information query instruction, and when all judgments are passed, the information query instruction is determined to be correct, for example, whether the format of the information query instruction is correct or not can be judged first, if the format is correct, whether a sender of the information query instruction is legal or not can be judged, and if the sender is legal, the information query instruction can be determined to be correct.
S302: and if the information inquiry instruction is incorrect, outputting an error notice.
If the information query instruction is incorrect, an error notification is output, and the error notification may be a fixed notification, for example, the error notification is "unable to query", or may be changed according to the specific situation of the information query instruction, for example, when the format of the information query instruction is incorrect, the error notification may be "instruction format error, please re-input", or when the sender of the information query instruction does not have authority to query the kernel information, the error notification may be "not have authority to view the information".
S303: and if the information query instruction is correct, analyzing the information query instruction.
If the information query instruction is correct, the information query instruction can be analyzed, and the target item specified by the information query instruction is determined so as to execute the subsequent steps.
By applying the kernel information output method provided by the embodiment of the invention, whether the information query instruction is correct or not can be judged so as to respond to the correct information query instruction, namely, the target information is obtained, the correct information query instruction is corresponding to the target information, and meanwhile, the notification and the reminding can be carried out on the incorrect information query instruction.
Based on the above embodiments of the present invention, a specific implementation of a kernel information output method will be described in the embodiments of the present invention.
In the embodiment of the invention, the kernel client is a file system kernel client, an information query tool is installed in the kernel client, the information query tool is a user mode application program with kernel access authority and is positioned in a user mode (namely a user space), and kernel information in the kernel space is directly acquired through the user mode application program. The information inquiry tool provides a user operation command externally, and internally transmits an information inquiry command into a kernel state (namely, a kernel space) in a mode of managing the device I/O through a character device driver. After the information query instruction input by the user is acquired, the information query instruction is analyzed and transmitted to the kernel. Specifically, after the debugging tool is installed, the character device driver is registered, the information query instruction is acquired by using the character device driver, and the information query instruction is transmitted to the kernel state by using the ioctl function. And after acquiring target information from the kernel space according to the information query instruction and constructing a target structure, copying the target structure from the kernel space to the user space so as to display the user in the user space.
In the following, the kernel information output device provided by the embodiment of the present invention is introduced, and the kernel information output device described below and the kernel information output method described above may be referred to correspondingly.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a kernel information output device according to an embodiment of the present invention, including:
an operation module 410 for installing and operating an information query tool; the information inquiry tool is a user mode application program with kernel access authority;
the obtaining module 420 is configured to obtain and analyze an information query instruction input by a user, and determine a target item specified by the information query instruction;
and the output module 430 is configured to obtain target information corresponding to the target item by using the information query tool, and output the target information.
Optionally, the output module 430 includes:
the target information acquisition unit is used for acquiring target information in the kernel space by using an information inquiry tool;
and the output unit is used for constructing a target structure body in the kernel space by using the target information, and transmitting the target structure body to the user space from the kernel space to finish the output of the target information.
Optionally, the output unit includes:
the acquisition subunit is used for acquiring a target preset structural body;
and the assignment subunit is used for assigning the target preset structural body by using the target information to obtain the target structural body.
Optionally, the operation module 410 includes:
the compiling unit is used for acquiring the tool code and compiling the tool code to obtain the information inquiry tool;
and the operation unit is used for operating the information inquiry tool.
Optionally, the obtaining module 420 includes:
the item number acquisition unit is used for acquiring and analyzing the information query instruction to obtain a target item number;
and the determining unit is used for determining the target item specified by the information query instruction by using the target item number and the preset corresponding relation.
Optionally, the obtaining module 420 includes:
the judging unit is used for acquiring the information inquiry command and judging whether the information inquiry command is correct or not;
the notification unit is used for outputting an error notification if the information query instruction is incorrect;
and the analysis unit is used for analyzing the information query instruction if the information query instruction is correct.
Optionally, the obtaining module 420 includes:
a registration unit for registering a character device driver;
and the acquisition unit is used for acquiring the information inquiry instruction by utilizing the character device driver.
In the following, the kernel information output device provided by the embodiment of the present invention is introduced, and the kernel information output device described below and the kernel information output method described above may be referred to correspondingly.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a kernel information output device according to an embodiment of the present invention, where the kernel information output device includes a memory and a processor, where:
a memory 510 for storing a computer program;
the processor 520 is configured to execute a computer program to implement the above-described kernel information output method.
In the following, the computer-readable storage medium provided by the embodiment of the present invention is introduced, and the computer-readable storage medium described below and the kernel information output method described above may be referred to correspondingly.
The present invention also provides a computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the kernel information output method described above.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it should also be noted that, herein, relationships such as first and second, etc., are intended only to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The core information output method, the core information output device, the core information output apparatus, and the computer readable storage medium provided by the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A kernel information output method is characterized by comprising the following steps:
installing and operating an information inquiry tool; the information inquiry tool is a user mode application program with kernel access authority;
acquiring and analyzing an information query instruction input by a user, and determining a target item specified by the information query instruction;
and acquiring target information corresponding to the target item by using the information query tool, and outputting the target information.
2. The kernel information output method according to claim 1, wherein the obtaining of the target information corresponding to the target item by using the information query tool and outputting the target information includes:
acquiring the target information in a kernel space by utilizing the information query tool;
and constructing a target structure body in the kernel space by using the target information, and sending the target structure body to a user space from the kernel space to finish the output of the target information.
3. The method according to claim 2, wherein constructing a target structure in the kernel space using the target information includes:
acquiring a target preset structural body;
and assigning the target preset structural body by using the target information to obtain the target structural body.
4. The kernel information output method according to claim 1, wherein the installing and running an information query tool includes:
acquiring a tool code, and compiling the tool code to obtain the information query tool;
and operating the information inquiry tool.
5. The kernel information output method according to claim 1, wherein the obtaining and parsing the information query command input by the user to determine the target item specified by the information query command includes:
acquiring and analyzing the information query instruction to obtain a target project number;
and determining the target item specified by the information query instruction by using the target item number and a preset corresponding relation.
6. The kernel information output method according to claim 1, wherein the obtaining and parsing the information query command input by the user includes:
acquiring the information query instruction, and judging whether the information query instruction is correct or not;
if not, outputting an error notification;
and if so, analyzing the information query instruction.
7. The kernel information output method according to claim 1, wherein the obtaining of the information query instruction input by the user includes:
registering a character device driver;
and acquiring the information query instruction by utilizing the character device driver.
8. A kernel information output apparatus, comprising:
the operation module is used for installing and operating the information inquiry tool; the information inquiry tool is a user mode application program with kernel access authority;
the acquisition module is used for acquiring and analyzing an information query instruction input by a user and determining a target item specified by the information query instruction;
and the output module is used for acquiring the target information corresponding to the target item by using the information query tool and outputting the target information.
9. A kernel information output device comprising a memory and a processor, wherein:
the memory is used for storing a computer program;
the processor is configured to execute the computer program to implement the kernel information output method according to any one of claims 1 to 7.
10. A computer-readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the kernel information output method according to any one of claims 1 to 7.
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Application publication date: 20200403 |