1plymouth_selinux(8) SELinux Policy plymouth plymouth_selinux(8)
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6 plymouth_selinux - Security Enhanced Linux Policy for the plymouth pro‐
7 cesses
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10 Security-Enhanced Linux secures the plymouth processes via flexible
11 mandatory access control.
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13 The plymouth processes execute with the plymouth_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 plymouth_t
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24 The plymouth_t SELinux type can be entered via the plymouth_exec_t file
25 type.
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27 The default entrypoint paths for the plymouth_t domain are the follow‐
28 ing:
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30 /bin/plymouth, /usr/bin/plymouth
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33 SELinux defines process types (domains) for each process running on the
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 plymouth policy is very flexible allowing users to setup their plymouth
40 processes in as secure a method as possible.
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42 The following process types are defined for plymouth:
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44 plymouth_t, plymouthd_t
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46 Note: semanage permissive -a plymouth_t can be used to make the process
47 type plymouth_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. ply‐
54 mouth policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run plymouth with the tightest access
56 possible.
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60 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
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63 setsebool -P fips_mode 1
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68 SELinux requires files to have an extended attribute to define the file
69 type.
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71 You can see the context of a file using the -Z option to ls
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73 Policy governs the access confined processes have to these files.
74 SELinux plymouth policy is very flexible allowing users to setup their
75 plymouth processes in as secure a method as possible.
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77 EQUIVALENCE DIRECTORIES
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80 plymouth policy stores data with multiple different file context types
81 under the /var/spool/plymouth directory. If you would like to store
82 the data in a different directory you can use the semanage command to
83 create an equivalence mapping. If you wanted to store this data under
84 the /srv directory you would execute the following command:
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86 semanage fcontext -a -e /var/spool/plymouth /srv/plymouth
87 restorecon -R -v /srv/plymouth
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89 STANDARD FILE CONTEXT
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91 SELinux defines the file context types for the plymouth, if you wanted
92 to store files with these types in a different paths, you need to exe‐
93 cute the semanage command to specify alternate labeling and then use
94 restorecon to put the labels on disk.
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96 semanage fcontext -a -t plymouth_exec_t '/srv/plymouth/content(/.*)?'
97 restorecon -R -v /srv/myplymouth_content
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99 Note: SELinux often uses regular expressions to specify labels that
100 match multiple files.
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102 The following file types are defined for plymouth:
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106 plymouth_exec_t
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108 - Set files with the plymouth_exec_t type, if you want to transition an
109 executable to the plymouth_t domain.
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112 Paths:
113 /bin/plymouth, /usr/bin/plymouth
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116 plymouthd_exec_t
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118 - Set files with the plymouthd_exec_t type, if you want to transition
119 an executable to the plymouthd_t domain.
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122 Paths:
123 /sbin/plymouthd, /usr/sbin/plymouthd
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126 plymouthd_spool_t
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128 - Set files with the plymouthd_spool_t type, if you want to store the
129 plymouthd files under the /var/spool directory.
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133 plymouthd_var_lib_t
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135 - Set files with the plymouthd_var_lib_t type, if you want to store the
136 plymouthd files under the /var/lib directory.
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140 plymouthd_var_log_t
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142 - Set files with the plymouthd_var_log_t type, if you want to treat the
143 data as plymouthd var log data, usually stored under the /var/log di‐
144 rectory.
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147 Paths:
148 /var/log/boot.log.*, /var/spool/plymouth/boot.log.*
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151 plymouthd_var_run_t
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153 - Set files with the plymouthd_var_run_t type, if you want to store the
154 plymouthd files under the /run or /var/run directory.
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158 Note: File context can be temporarily modified with the chcon command.
159 If you want to permanently change the file context you need to use the
160 semanage fcontext command. This will modify the SELinux labeling data‐
161 base. You will need to use restorecon to apply the labels.
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165 semanage fcontext can also be used to manipulate default file context
166 mappings.
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168 semanage permissive can also be used to manipulate whether or not a
169 process type is permissive.
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171 semanage module can also be used to enable/disable/install/remove pol‐
172 icy modules.
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174 semanage boolean can also be used to manipulate the booleans
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177 system-config-selinux is a GUI tool available to customize SELinux pol‐
178 icy settings.
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182 This manual page was auto-generated using sepolicy manpage .
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186 selinux(8), plymouth(8), semanage(8), restorecon(8), chcon(1), sepol‐
187 icy(8), setsebool(8)
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191plymouth 23-10-20 plymouth_selinux(8)