1cpuplug_selinux(8) SELinux Policy cpuplug cpuplug_selinux(8)
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6 cpuplug_selinux - Security Enhanced Linux Policy for the cpuplug pro‐
7 cesses
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10 Security-Enhanced Linux secures the cpuplug processes via flexible
11 mandatory access control.
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13 The cpuplug processes execute with the cpuplug_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep cpuplug_t
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24 The cpuplug_t SELinux type can be entered via the cpuplug_exec_t file
25 type.
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27 The default entrypoint paths for the cpuplug_t domain are the follow‐
28 ing:
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30 /usr/sbin/cpuplugd
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33 SELinux defines process types (domains) for each process running on the
34 system
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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 cpuplug policy is very flexible allowing users to setup their cpuplug
40 processes in as secure a method as possible.
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42 The following process types are defined for cpuplug:
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44 cpuplug_t
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46 Note: semanage permissive -a cpuplug_t can be used to make the process
47 type cpuplug_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. cpuplug
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run cpuplug with the tightest access possi‐
56 ble.
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60 If you want to allow all daemons to write corefiles to /, you must turn
61 on the daemons_dump_core boolean. Disabled by default.
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63 setsebool -P daemons_dump_core 1
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67 If you want to enable cluster mode for daemons, you must turn on the
68 daemons_enable_cluster_mode boolean. Enabled by default.
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70 setsebool -P daemons_enable_cluster_mode 1
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74 If you want to allow all daemons to use tcp wrappers, you must turn on
75 the daemons_use_tcp_wrapper boolean. Disabled by default.
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77 setsebool -P daemons_use_tcp_wrapper 1
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81 If you want to allow all daemons the ability to read/write terminals,
82 you must turn on the daemons_use_tty boolean. Disabled by default.
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84 setsebool -P daemons_use_tty 1
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88 If you want to deny any process from ptracing or debugging any other
89 processes, you must turn on the deny_ptrace boolean. Enabled by
90 default.
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92 setsebool -P deny_ptrace 1
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96 If you want to allow any process to mmap any file on system with
97 attribute file_type, you must turn on the domain_can_mmap_files bool‐
98 ean. Enabled by default.
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100 setsebool -P domain_can_mmap_files 1
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104 If you want to allow all domains write to kmsg_device, while kernel is
105 executed with systemd.log_target=kmsg parameter, you must turn on the
106 domain_can_write_kmsg boolean. Disabled by default.
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108 setsebool -P domain_can_write_kmsg 1
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112 If you want to allow all domains to use other domains file descriptors,
113 you must turn on the domain_fd_use boolean. Enabled by default.
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115 setsebool -P domain_fd_use 1
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119 If you want to allow all domains to have the kernel load modules, you
120 must turn on the domain_kernel_load_modules boolean. Disabled by
121 default.
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123 setsebool -P domain_kernel_load_modules 1
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127 If you want to allow all domains to execute in fips_mode, you must turn
128 on the fips_mode boolean. Enabled by default.
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130 setsebool -P fips_mode 1
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134 If you want to enable reading of urandom for all domains, you must turn
135 on the global_ssp boolean. Disabled by default.
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137 setsebool -P global_ssp 1
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142 The SELinux process type cpuplug_t can manage files labeled with the
143 following file types. The paths listed are the default paths for these
144 file types. Note the processes UID still need to have DAC permissions.
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146 cluster_conf_t
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148 /etc/cluster(/.*)?
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150 cluster_var_lib_t
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152 /var/lib/pcsd(/.*)?
153 /var/lib/cluster(/.*)?
154 /var/lib/openais(/.*)?
155 /var/lib/pengine(/.*)?
156 /var/lib/corosync(/.*)?
157 /usr/lib/heartbeat(/.*)?
158 /var/lib/heartbeat(/.*)?
159 /var/lib/pacemaker(/.*)?
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161 cluster_var_run_t
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163 /var/run/crm(/.*)?
164 /var/run/cman_.*
165 /var/run/rsctmp(/.*)?
166 /var/run/aisexec.*
167 /var/run/heartbeat(/.*)?
168 /var/run/corosync-qnetd(/.*)?
169 /var/run/corosync-qdevice(/.*)?
170 /var/run/cpglockd.pid
171 /var/run/corosync.pid
172 /var/run/rgmanager.pid
173 /var/run/cluster/rgmanager.sk
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175 cpuplug_lock_t
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178 cpuplug_var_run_t
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181 root_t
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183 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
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185 /initrd
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187 sysfs_t
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189 /sys(/.*)?
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193 SELinux requires files to have an extended attribute to define the file
194 type.
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196 You can see the context of a file using the -Z option to ls
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198 Policy governs the access confined processes have to these files.
199 SELinux cpuplug policy is very flexible allowing users to setup their
200 cpuplug processes in as secure a method as possible.
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202 STANDARD FILE CONTEXT
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204 SELinux defines the file context types for the cpuplug, if you wanted
205 to store files with these types in a diffent paths, you need to execute
206 the semanage command to sepecify alternate labeling and then use
207 restorecon to put the labels on disk.
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209 semanage fcontext -a -t cpuplug_var_run_t '/srv/mycpuplug_con‐
210 tent(/.*)?'
211 restorecon -R -v /srv/mycpuplug_content
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213 Note: SELinux often uses regular expressions to specify labels that
214 match multiple files.
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216 The following file types are defined for cpuplug:
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220 cpuplug_exec_t
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222 - Set files with the cpuplug_exec_t type, if you want to transition an
223 executable to the cpuplug_t domain.
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227 cpuplug_initrc_exec_t
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229 - Set files with the cpuplug_initrc_exec_t type, if you want to transi‐
230 tion an executable to the cpuplug_initrc_t domain.
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234 cpuplug_lock_t
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236 - Set files with the cpuplug_lock_t type, if you want to treat the
237 files as cpuplug lock data, stored under the /var/lock directory
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241 cpuplug_var_run_t
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243 - Set files with the cpuplug_var_run_t type, if you want to store the
244 cpuplug files under the /run or /var/run directory.
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248 Note: File context can be temporarily modified with the chcon command.
249 If you want to permanently change the file context you need to use the
250 semanage fcontext command. This will modify the SELinux labeling data‐
251 base. You will need to use restorecon to apply the labels.
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255 semanage fcontext can also be used to manipulate default file context
256 mappings.
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258 semanage permissive can also be used to manipulate whether or not a
259 process type is permissive.
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261 semanage module can also be used to enable/disable/install/remove pol‐
262 icy modules.
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264 semanage boolean can also be used to manipulate the booleans
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267 system-config-selinux is a GUI tool available to customize SELinux pol‐
268 icy settings.
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272 This manual page was auto-generated using sepolicy manpage .
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276 selinux(8), cpuplug(8), semanage(8), restorecon(8), chcon(1), sepol‐
277 icy(8) , setsebool(8)
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281cpuplug 19-04-25 cpuplug_selinux(8)