readahead_selinux(8)

1readahead_selinux(8)       SELinux Policy readahead       readahead_selinux(8)
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NAME

6       readahead_selinux  -  Security  Enhanced Linux Policy for the readahead
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the readahead  processes  via  flexible
11       mandatory access control.
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13       The  readahead processes execute with the readahead_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep readahead_t
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ENTRYPOINTS

24       The  readahead_t  SELinux  type can be entered via the readahead_exec_t
25       file type.
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27       The default entrypoint paths for the readahead_t domain are the follow‐
28       ing:
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30       /sbin/readahead.*,   /usr/sbin/readahead.*,   /usr/lib/systemd/systemd-
31       readahead.*
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PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
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37       You can see the context of a process using the -Z option to ps
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39       Policy  governs  the  access confined processes have to files.  SELinux
40       readahead policy is very flexible allowing users to setup their  reada‐
41       head processes in as secure a method as possible.
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43       The following process types are defined for readahead:
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45       readahead_t
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47       Note:  semanage  permissive  -a  readahead_t  can  be  used to make the
48       process type readahead_t permissive. SELinux does not  deny  access  to
49       permissive  process  types,  but the AVC (SELinux denials) messages are
50       still generated.
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BOOLEANS

54       SELinux policy is customizable based on least access required.   reada‐
55       head  policy  is extremely flexible and has several booleans that allow
56       you to manipulate the policy and run readahead with the tightest access
57       possible.
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61       If you want to allow all domains to execute in fips_mode, you must turn
62       on the fips_mode boolean. Enabled by default.
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64       setsebool -P fips_mode 1
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FILE CONTEXTS

69       SELinux requires files to have an extended attribute to define the file
70       type.
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72       You can see the context of a file using the -Z option to ls
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74       Policy  governs  the  access  confined  processes  have to these files.
75       SELinux readahead policy is very flexible allowing users to setup their
76       readahead processes in as secure a method as possible.
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78       STANDARD FILE CONTEXT
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80       SELinux defines the file context types for the readahead, if you wanted
81       to store files with these types in a different paths, you need to  exe‐
82       cute  the  semanage  command to specify alternate labeling and then use
83       restorecon to put the labels on disk.
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85       semanage fcontext -a -t readahead_exec_t '/srv/readahead/content(/.*)?'
86       restorecon -R -v /srv/myreadahead_content
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88       Note: SELinux often uses regular expressions  to  specify  labels  that
89       match multiple files.
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91       The following file types are defined for readahead:
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95       readahead_exec_t
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97       -  Set  files with the readahead_exec_t type, if you want to transition
98       an executable to the readahead_t domain.
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101       Paths:
102            /sbin/readahead.*,  /usr/sbin/readahead.*,   /usr/lib/systemd/sys‐
103            temd-readahead.*
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106       readahead_var_lib_t
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108       - Set files with the readahead_var_lib_t type, if you want to store the
109       readahead files under the /var/lib directory.
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113       readahead_var_run_t
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115       - Set files with the readahead_var_run_t type, if you want to store the
116       readahead files under the /run or /var/run directory.
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119       Paths:
120            /var/run/readahead.*, /dev/.systemd/readahead(/.*)?, /var/run/sys‐
121            temd/readahead(/.*)?
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124       Note: File context can be temporarily modified with the chcon  command.
125       If  you want to permanently change the file context you need to use the
126       semanage fcontext command.  This will modify the SELinux labeling data‐
127       base.  You will need to use restorecon to apply the labels.
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COMMANDS

131       semanage  fcontext  can also be used to manipulate default file context
132       mappings.
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134       semanage permissive can also be used to manipulate  whether  or  not  a
135       process type is permissive.
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137       semanage  module can also be used to enable/disable/install/remove pol‐
138       icy modules.
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140       semanage boolean can also be used to manipulate the booleans
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143       system-config-selinux is a GUI tool available to customize SELinux pol‐
144       icy settings.
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AUTHOR

148       This manual page was auto-generated using sepolicy manpage .
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