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‐
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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 diffent paths, you need to execute
93 the semanage command to sepecify alternate labeling and then use
94 restorecon to put the labels on disk.
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96 semanage fcontext -a -t plymouthd_var_run_t '/srv/myplymouth_con‐
97 tent(/.*)?'
98 restorecon -R -v /srv/myplymouth_content
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100 Note: SELinux often uses regular expressions to specify labels that
101 match multiple files.
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103 The following file types are defined for plymouth:
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107 plymouth_exec_t
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109 - Set files with the plymouth_exec_t type, if you want to transition an
110 executable to the plymouth_t domain.
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113 Paths:
114 /bin/plymouth, /usr/bin/plymouth
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117 plymouthd_exec_t
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119 - Set files with the plymouthd_exec_t type, if you want to transition
120 an executable to the plymouthd_t domain.
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123 Paths:
124 /sbin/plymouthd, /usr/sbin/plymouthd
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127 plymouthd_spool_t
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129 - Set files with the plymouthd_spool_t type, if you want to store the
130 plymouthd files under the /var/spool directory.
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134 plymouthd_var_lib_t
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136 - Set files with the plymouthd_var_lib_t type, if you want to store the
137 plymouthd files under the /var/lib directory.
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141 plymouthd_var_log_t
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143 - Set files with the plymouthd_var_log_t type, if you want to treat the
144 data as plymouthd var log data, usually stored under the /var/log
145 directory.
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148 Paths:
149 /var/log/boot.log.*, /var/spool/plymouth/boot.log.*
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152 plymouthd_var_run_t
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154 - Set files with the plymouthd_var_run_t type, if you want to store the
155 plymouthd files under the /run or /var/run directory.
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159 Note: File context can be temporarily modified with the chcon command.
160 If you want to permanently change the file context you need to use the
161 semanage fcontext command. This will modify the SELinux labeling data‐
162 base. You will need to use restorecon to apply the labels.
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166 semanage fcontext can also be used to manipulate default file context
167 mappings.
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169 semanage permissive can also be used to manipulate whether or not a
170 process type is permissive.
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172 semanage module can also be used to enable/disable/install/remove pol‐
173 icy modules.
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175 semanage boolean can also be used to manipulate the booleans
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178 system-config-selinux is a GUI tool available to customize SELinux pol‐
179 icy settings.
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183 This manual page was auto-generated using sepolicy manpage .
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187 selinux(8), plymouth(8), semanage(8), restorecon(8), chcon(1), sepol‐
188 icy(8), setsebool(8)
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192plymouth 21-03-26 plymouth_selinux(8)