CN108920629B - ACL permission setting method, device, equipment and medium of file system - Google Patents
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Abstract
The invention discloses a method, a device, equipment and a medium for setting ACL authority of a file system, wherein the method comprises the following steps: traversing a preset directory in a target file system; when a file is searched in the process of traversing operation, setting a set access type authority in an ACL corresponding to the file; when a directory path is searched in the process of traversing operation, setting a given access type authority and a given default type authority in an ACL corresponding to the directory path; the contents in the ACL are written to the disk of the target file system to validate the set contents. The method reduces the traversal times of the file system, further relatively reduces the time overhead in the ACL permission setting process, and improves the overall execution efficiency. In addition, the invention also provides an ACL permission setting device, equipment and a medium of the file system, and the beneficial effects are as above.
Description
Technical Field
The present invention relates to the field of system configuration, and in particular, to a method, an apparatus, a device, and a medium for setting an ACL authorization of a file system.
Background
With the advent of the big data era, the amount of data in the Linux file system used by an enterprise is often extremely large, so that the directory hierarchy of the file system is relatively large, and a directory of each hierarchy may have files, so that the Control of the directory or the file operation authority is an important link in the file system, and currently, an acl (access Control list) access Control list is usually used for setting the access authority of the files and the directories.
The ACL authority is divided into an access type authority and a default type authority, and the access type authority and the default type authority respectively comprise a w write authority, an r read authority, an x execution authority and other authorities restricting the use of a user. The access type authority is applied to the directory and the file and acts on the existing file or directory, while the default type authority is only applied to the directory and acts on the file or directory which is not generated under the directory, namely after the default type authority is set for the directory, the file or directory which is newly generated in the directory has the default type authority. When the current ACL permission setting method is used for setting the ACL permission of the file system, the setting of the access type permission and the setting of the default type permission need to be separately carried out, and when the access type permission or the default type permission is set, all levels of directories and files of the file system need to be traversed.
Therefore, it is seen that providing an ACL permission setting method for a file system to relatively reduce the time overhead in the ACL permission setting process and improve the overall execution efficiency is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a medium for setting ACL authority of a file system, so as to relatively reduce time overhead in the ACL authority setting process and improve the overall execution efficiency.
In order to solve the above technical problem, the present invention provides a method for setting an ACL authority of a file system, including:
traversing a preset directory in a target file system;
when a file is searched in the process of traversing operation, setting a set access type authority in an ACL corresponding to the file;
when a directory path is searched in the process of traversing operation, setting a given access type authority and a given default type authority in an ACL corresponding to the directory path;
the contents in the ACL are written to the disk of the target file system to validate the set contents.
Preferably, the setting of the given access type authority in the ACL corresponding to the file specifically includes:
setting access type authority of a specified user in an ACL corresponding to the file;
correspondingly, setting a given access type authority and a given default type authority in the ACL corresponding to the directory path specifically includes:
and setting access type authority and default type authority of a specified user in an ACL corresponding to the directory path.
Preferably, before the access type authority of the specified user is set in the ACL corresponding to the file, the method further includes:
judging whether the related information of the specified user is registered in an ACL corresponding to the file in advance;
if yes, a step of setting access type authority of the specified user in an ACL corresponding to the file is executed;
otherwise, newly adding relevant information of the specified user in the ACL corresponding to the file, and executing the step of setting the access type authority of the specified user in the ACL corresponding to the file;
correspondingly, before setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path, the method further comprises:
judging whether the relevant information of the specified user is registered in an ACL corresponding to the directory path in advance;
if yes, setting access type authority and default type authority of the appointed user in an ACL corresponding to the directory path;
otherwise, newly adding relevant information of the specified user in the ACL corresponding to the directory path, and executing the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path.
Preferably, when it is determined that the related information of the specified user is registered in advance in the ACL corresponding to the file, the method further includes:
judging whether the current authority corresponding to the appointed user is different from the established access type authority or not;
if yes, a step of setting access type authority of the specified user in an ACL corresponding to the file is executed;
accordingly, when it is determined that the related information of the specified user is registered in advance in the ACL corresponding to the directory path, the method further includes:
judging whether the current authority corresponding to the appointed user is different from the access type authority and the default type authority or not;
if yes, the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path is executed.
Preferably, after performing a traversal operation on the preset directory in the target file system, the method further includes:
and counting the dependency relationship between the directory paths and the files under a preset directory, and generating a directory tree to be recorded into a log.
In addition, the present invention also provides an ACL authority setting device of a file system, including:
the traversal module is used for performing traversal operation on a preset directory in the target file system;
the first processing module is used for setting a set access type authority in an ACL corresponding to a file when the file is searched in the process of traversing operation;
the second processing module is used for setting a given access type authority and a given default type authority in an ACL corresponding to the directory path when the directory path is searched in the process of traversing operation;
and the validation module is used for writing the content in the ACL into a disk of the target file system so as to validate the set content.
Preferably, the apparatus further comprises:
and the counting module is used for counting the dependency relationship between the directory path and the file under the preset directory and generating a directory tree to be recorded into the log.
In addition, the present invention also provides an ACL authority setting device of a file system, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the ACL authority setting method of the file system when executing the computer program.
Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the ACL authority setting method of the file system as described above.
The ACL permission setting method of the file system provided by the invention comprises the steps of firstly carrying out traversal operation on a preset directory in a target file system to obtain files and directory paths under the preset directory, further setting access type permission in the ACL corresponding to the files when the files are searched in the process of the traversal operation, simultaneously setting the access type permission and default type permission in the ACL corresponding to the directory paths when the directory paths are searched in the process of the traversal operation, and finally writing the content in the ACL into a disk of the target file system to enable the set content in the ACL to take effect. Therefore, the method realizes the operation of simultaneously setting the access type authority and the default type authority in one traversal of the target file system, and compared with the prior art, the method reduces the number of times of traversal of the file system, further relatively reduces the time overhead in the ACL authority setting process, and improves the overall execution efficiency. In addition, the invention also provides an ACL permission setting device, equipment and a medium of the file system, and the beneficial effects are as above.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of an ACL authority setting method of a file system according to an embodiment of the present invention;
fig. 2 is a structural diagram of an ACL authority setting device of a file system according to an embodiment of the present invention.
Detailed Description
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 obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
The core of the invention is to provide an ACL permission setting method of a file system, so as to relatively reduce the time overhead in the ACL permission setting process and improve the overall execution efficiency. The other core of the invention is to provide an ACL authority setting device, equipment and a medium of the file system.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
Fig. 1 is a flowchart of an ACL authority setting method of a file system according to an embodiment of the present invention. Referring to fig. 1, the specific steps of the ACL authority setting method of the file system include:
step S10: and traversing the preset directory in the target file system.
It should be noted that the preset directory referred in this step is determined according to the traversal requirement of the user, the preset directory is a root directory during traversal, the preset directory often includes sub-directories and files, the sub-directories may include files, and the sub-directories and the files may also belong to another sub-directory. For example, the preset directory is usr, and if the usr directory includes a share directory and a file1 file, the file1 file is at the same level as the share directory and belongs to the usr directory, and the usr directory is used as a root directory to traverse step by step during traversal, that is, the share directory and the file1 at the next level can be obtained during traversal of the usr directory, and then the contents in the share directory are traversed until the traversal is terminated without a directory of a subsequent sub-directory.
Step S11: and when the file is searched in the process of traversing operation, setting a set access type authority in the ACL corresponding to the file.
Because the operation authority provided by the files under each directory for different users or user groups is different, the operation authority of the files mainly comprises r read authority, w write authority, x execution authority and the like. In order to ensure the security of a file in practical applications, a high-level user such as an administrator may have more or even all operation permissions for a certain file, and for some users with primary identities, it may not be possible to perform any operation on a certain file, and setting a given access type permission in an ACL is an operation means for currently distinguishing the operation permissions of the user on the file, so the specific step of setting in the ACL is a technical content known by those skilled in the art, and is not described herein.
Step S12: when a directory path is searched in the process of traversing operation, a given access type authority and a given default type authority are set in an ACL corresponding to the directory path.
It should be noted that the directory path in this step is formed according to the inclusion relationship between directories, for example, the directory path "/usr/share/doc/" is equivalent to a share directory included in the usr directory, a doc directory included in the share directory, and the directory path is an access path of the doc directory.
The same reason that different users or user groups have different operation permissions for files is that different users or user groups also have different operation permissions for directory paths, so when a directory path is searched in the traversal operation process, a given access type permission needs to be set in an ACL corresponding to the directory path, and in addition, a default type permission set for the directory is applied to a file or directory that is not generated yet under the directory. The specific steps for setting the default type authority in the ACL are known to those skilled in the art, and will not be described herein.
Step S13: the contents in the ACL are written to the disk of the target file system to validate the set contents.
It can be understood that, in this step, the rights content set by the ACL takes effect, and after taking effect, the directory path and the file under the preset directory can both carry out the restriction on the operation rights of the user according to the content set in the ACL. The detailed operations for validating the contents of the ACL are well known to those skilled in the art and will not be described herein. In addition, the operation of writing the content in the ACL to the disk may be performed individually after each ACL is set, or may be performed collectively after all ACLs are set.
The ACL permission setting method of the file system provided by the invention comprises the steps of firstly carrying out traversal operation on a preset directory in a target file system to obtain files and directory paths under the preset directory, further setting access type permission in the ACL corresponding to the files when the files are searched in the process of the traversal operation, simultaneously setting the access type permission and default type permission in the ACL corresponding to the directory paths when the directory paths are searched in the process of the traversal operation, and finally writing the content in the ACL into a disk of the target file system to enable the set content in the ACL to take effect. Therefore, the method realizes the operation of simultaneously setting the access type authority and the default type authority in one traversal of the target file system, and compared with the prior art, the method reduces the number of times of traversal of the file system, further relatively reduces the time overhead in the ACL authority setting process, and improves the overall execution efficiency.
Example two
On the basis of the above examples, the present invention also provides a series of preferred embodiments as follows.
As a preferred embodiment, setting a predetermined access type authority in an ACL corresponding to a file specifically includes:
setting access type authority of a specified user in an ACL corresponding to the file;
correspondingly, setting a given access type authority and a given default type authority in the ACL corresponding to the directory path specifically includes:
and setting access type authority and default type authority of a specified user in an ACL corresponding to the directory path.
It should be noted that, in the present embodiment, authority setting of a file or directory path is performed for a certain specified user in an ACL, and the present embodiment is applied to a target file system with a large number of users to implement selective authority setting for the specified user, so that the overall work overhead required for ACL setting can be relatively reduced, and the overall operation efficiency can be improved.
On the basis of the foregoing embodiment, as a preferred embodiment, before the access type authority of the specified user is set in the ACL corresponding to the file, the method further includes:
judging whether the related information of the specified user is registered in an ACL corresponding to the file in advance;
if yes, a step of setting access type authority of the specified user in an ACL corresponding to the file is executed;
otherwise, newly adding relevant information of the specified user in the ACL corresponding to the file, and executing the step of setting the access type authority of the specified user in the ACL corresponding to the file;
correspondingly, before setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path, the method further comprises:
judging whether the relevant information of the specified user is registered in an ACL corresponding to the directory path in advance;
if yes, setting access type authority and default type authority of the appointed user in an ACL corresponding to the directory path;
otherwise, newly adding relevant information of the specified user in the ACL corresponding to the directory path, and executing the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path.
It should be noted that, because the number of users in the target file system is often large, and new users are still created continuously while the target file system is working, there may be a case where one user is newly generated by the target file system, and the authority of the user for accessing the file and the directory path needs to be set, but since the user is a new user, the relevant information of the user often does not exist in the ACL yet, in order to avoid an error in the process of setting the ACL for the user, it may be determined before the ACL setting of the file or the directory path is performed whether the relevant information of the user is registered in the ACL in advance, if not, the relevant information of the user is newly added in the ACL, and then the authority is set for the user in the ACL. The method and the device relatively avoid the possible abnormal situation during ACL setting, and ensure the stability and the execution accuracy of the overall ACL setting process.
In addition to the above-described embodiment, as a preferred embodiment, when it is determined that the relevant information of the specified user is registered in the ACL corresponding to the file in advance, the method further includes:
judging whether the current authority corresponding to the appointed user is different from the established access type authority or not;
if yes, a step of setting access type authority of the specified user in an ACL corresponding to the file is executed;
accordingly, when it is determined that the related information of the specified user is registered in advance in the ACL corresponding to the directory path, the method further includes:
judging whether the current authority corresponding to the appointed user is different from the access type authority and the default type authority or not;
if yes, the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path is executed.
Considering that when setting the authority for the designated user, there may be a case that the designated user has been previously set with a corresponding authority, and the authority is the same as the given access or default type authority, so as to avoid redundant time overhead and resource waste caused by repeatedly setting the same content, when determining that the related information of the designated user is previously registered in the ACL of the file or directory path, it is determined whether the current authority corresponding to the designated user is different from the given access or default type authority, and the ACL is set only when the difference exists. The embodiment avoids the situations of redundant time expenditure and resource waste caused by repeatedly setting the same content for the ACL.
In addition, as a preferred embodiment, after performing a traversal operation on the preset directory in the target file system, the method further includes:
and counting the dependency relationship between the directory paths and the files under a preset directory, and generating a directory tree to be recorded into a log.
It will be understood that traversing the preset directory corresponds to retrieving the hierarchical relationships between the sub-directories and the files under the preset directory, and the hierarchical relationships between the directories and the files can be known through the traversal. According to the embodiment, the dependency relationship between the directory path and the file under the preset directory is counted and the directory tree is generated to be recorded in the log, so that a user can visually learn the overall structure of the preset directory through the directory tree, maintenance of subdirectories and files under the preset directory is facilitated, and the overall high availability of the preset directory is relatively guaranteed.
EXAMPLE III
In the foregoing, the embodiment of the ACL permission setting method of the file system is described in detail, and the present invention further provides an ACL permission setting device of the file system corresponding to the method.
Fig. 2 is a structural diagram of an ACL authority setting device of a file system according to an embodiment of the present invention. The ACL authority setting device of the file system provided by the embodiment of the present invention includes:
and the traversing module 10 is configured to perform a traversing operation on a preset directory in the target file system.
The first processing module 11 is configured to set a predetermined access type permission in an ACL corresponding to a file when the file is searched in the process of performing traversal operation.
The second processing module 12 is configured to set a predetermined access type permission and a predetermined default type permission in an ACL corresponding to the directory path when the directory path is searched in the process of performing traversal operation.
And a validation module 13, configured to write the content in the ACL to a disk of the target file system to validate the set content.
The ACL permission setting device of the file system provided by the invention firstly carries out traversal operation on the preset directory in the target file system to obtain the file and the directory path under the preset directory, then when the file is searched in the process of traversal operation, the access type permission is set in the ACL corresponding to the file, when the directory path is searched in the process of traversal operation, the access type permission and the default type permission are simultaneously set in the ACL corresponding to the directory path, and finally, the set content in the ACL is validated by writing the content in the ACL into the disk of the target file system. Therefore, the device realizes the operation of simultaneously setting the access type authority and the default type authority in one traversal of the target file system, and compared with the prior art, the device reduces the number of times of traversal of the file system, further relatively reduces the time overhead in the ACL authority setting process, and improves the overall execution efficiency.
On the basis of the third embodiment, the apparatus further includes:
and the counting module is used for counting the dependency relationship between the directory path and the file under the preset directory and generating a directory tree to be recorded into the log.
Example four
The present invention also provides an ACL authority setting device of a file system, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the ACL authority setting method of the file system when executing the computer program.
According to the ACL permission setting equipment of the file system, firstly, traversal operation is carried out on a preset directory in a target file system to obtain files and directory paths under the preset directory, then when the files are searched in the traversal operation process, access type permission is set in the ACL corresponding to the files, when the directory paths are searched in the traversal operation process, the access type permission and default type permission are set in the ACL corresponding to the directory paths at the same time, and finally, the set contents in the ACL are written into a disk of the target file system to enable the set contents in the ACL to be effective. Therefore, the equipment realizes the operation of simultaneously setting the access type authority and the default type authority in one traversal of the target file system, and compared with the prior art, the equipment reduces the number of times of traversal of the file system, further relatively reduces the time overhead in the ACL authority setting process, and improves the overall execution efficiency.
The present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the ACL authority setting method for a file system as described above.
The computer readable storage medium provided by the invention firstly performs traversal operation on a preset directory in a target file system to obtain a file and a directory path under the preset directory, further sets an access type authority in an ACL corresponding to the file when the file is searched in the traversal operation process, sets the access type authority and a default type authority in the ACL corresponding to the directory path simultaneously when the directory path is searched in the traversal operation process, and finally writes the content in the ACL into a disk of the target file system to enable the set content in the ACL to take effect. Therefore, compared with the prior art, the computer readable storage medium reduces the number of times of traversing the file system, further relatively reduces the time overhead in the ACL permission setting process, and improves the overall execution efficiency.
The ACL authority setting method, apparatus, device and medium of a file system provided by the present invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and 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. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A method for setting ACL authority of a file system is characterized by comprising the following steps:
traversing a preset directory in a target file system;
when a file is searched in the process of traversing operation, setting a set access type authority in an ACL corresponding to the file;
when a directory path is searched in the process of traversing operation, setting a given access type authority and a given default type authority in an ACL corresponding to the directory path;
writing the content in the ACL into a disk of the target file system to enable the set content to be effective;
the setting of the given access type authority in the ACL corresponding to the file is specifically as follows:
setting the access type authority of a specified user in an ACL corresponding to the file;
correspondingly, the setting of the given access type authority and the given default type authority in the ACL corresponding to the directory path specifically includes:
and setting the access type authority and the default type authority of the specified user in an ACL corresponding to the directory path.
2. The method of claim 1, before setting the access type permission of the specified user in an ACL corresponding to the file, the method further comprising:
judging whether the related information of the specified user is registered in an ACL corresponding to the file in advance;
if yes, executing the step of setting the access type authority of the specified user in the ACL corresponding to the file;
otherwise, newly adding the relevant information of the specified user in the ACL corresponding to the file, and executing the step of setting the access type authority of the specified user in the ACL corresponding to the file;
correspondingly, before setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path, the method further includes:
judging whether the related information of the specified user is registered in an ACL corresponding to the directory path in advance;
if yes, executing the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path;
otherwise, newly adding the related information of the specified user in the ACL corresponding to the directory path, and executing the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path.
3. The method according to claim 2, wherein when it is determined that the information related to the specified user is registered in advance in the ACL corresponding to the file, the method further comprises:
judging whether the current authority corresponding to the appointed user is different from the established access type authority or not;
if yes, executing the step of setting the access type authority of the specified user in the ACL corresponding to the file;
accordingly, when it is determined that the relevant information of the specified user is registered in the ACL corresponding to the directory path in advance, the method further includes:
judging whether the current authority corresponding to the specified user is different from the access type authority and the default type authority or not;
if yes, executing the step of setting the access type authority and the default type authority of the specified user in the ACL corresponding to the directory path.
4. The method according to any one of claims 1-3, wherein after the traversing operation of the preset directory in the target file system, the method further comprises:
and counting the subordination relation between the directory path and the file under the preset directory, and generating a directory tree to be recorded into a log.
5. An ACL authority setting device of a file system, characterized by comprising:
the traversal module is used for performing traversal operation on a preset directory in the target file system;
the first processing module is used for setting a set access type authority in an ACL corresponding to the file when the file is searched in the process of traversing operation;
the second processing module is used for setting a given access type authority and a given default type authority in an ACL corresponding to the directory path when the directory path is searched in the process of traversing operation;
the validation module is used for writing the content in the ACL into a disk of the target file system so as to validate the set content;
the first processing module is specifically configured to set the access type permission of the specified user in an ACL corresponding to the file;
correspondingly, the second processing module is specifically configured to set the access type permission and the default type permission of the specified user in an ACL corresponding to the directory path.
6. The apparatus of claim 5, further comprising:
and the counting module is used for counting the subordination relation between the directory path and the file under the preset directory and generating a directory tree to be recorded into a log.
7. An ACL authority setting device of a file system, characterized by comprising:
a memory for storing a computer program;
processor for implementing the steps of the ACL rights setting method of a file system according to any of claims 1 to 4 when executing said computer program.
8. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the ACL authority setting method of a file system according to any one of claims 1 to 4.
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