1sensord_selinux(8) SELinux Policy sensord sensord_selinux(8)
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6 sensord_selinux - Security Enhanced Linux Policy for the sensord pro‐
7 cesses
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10 Security-Enhanced Linux secures the sensord processes via flexible
11 mandatory access control.
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13 The sensord processes execute with the sensord_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 sensord_t
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24 The sensord_t SELinux type can be entered via the sensord_exec_t file
25 type.
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27 The default entrypoint paths for the sensord_t domain are the follow‐
28 ing:
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30 /usr/sbin/sensord
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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 sensord policy is very flexible allowing users to setup their sensord
40 processes in as secure a method as possible.
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42 The following process types are defined for sensord:
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44 sensord_t
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46 Note: semanage permissive -a sensord_t can be used to make the process
47 type sensord_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. sensord
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run sensord 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 sensord_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 root_t
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177 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
178 /
179 /initrd
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181 sensord_log_t
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183 /var/log/sensor.*
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185 sensord_var_run_t
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187 /var/run/sensord.pid
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191 SELinux requires files to have an extended attribute to define the file
192 type.
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194 You can see the context of a file using the -Z option to ls
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196 Policy governs the access confined processes have to these files.
197 SELinux sensord policy is very flexible allowing users to setup their
198 sensord processes in as secure a method as possible.
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200 STANDARD FILE CONTEXT
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202 SELinux defines the file context types for the sensord, if you wanted
203 to store files with these types in a diffent paths, you need to execute
204 the semanage command to sepecify alternate labeling and then use
205 restorecon to put the labels on disk.
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207 semanage fcontext -a -t sensord_var_run_t '/srv/mysensord_con‐
208 tent(/.*)?'
209 restorecon -R -v /srv/mysensord_content
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211 Note: SELinux often uses regular expressions to specify labels that
212 match multiple files.
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214 The following file types are defined for sensord:
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218 sensord_exec_t
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220 - Set files with the sensord_exec_t type, if you want to transition an
221 executable to the sensord_t domain.
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225 sensord_initrc_exec_t
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227 - Set files with the sensord_initrc_exec_t type, if you want to transi‐
228 tion an executable to the sensord_initrc_t domain.
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232 sensord_log_t
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234 - Set files with the sensord_log_t type, if you want to treat the data
235 as sensord log data, usually stored under the /var/log directory.
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239 sensord_unit_file_t
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241 - Set files with the sensord_unit_file_t type, if you want to treat the
242 files as sensord unit content.
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246 sensord_var_run_t
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248 - Set files with the sensord_var_run_t type, if you want to store the
249 sensord files under the /run or /var/run directory.
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253 Note: File context can be temporarily modified with the chcon command.
254 If you want to permanently change the file context you need to use the
255 semanage fcontext command. This will modify the SELinux labeling data‐
256 base. You will need to use restorecon to apply the labels.
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260 semanage fcontext can also be used to manipulate default file context
261 mappings.
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263 semanage permissive can also be used to manipulate whether or not a
264 process type is permissive.
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266 semanage module can also be used to enable/disable/install/remove pol‐
267 icy modules.
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269 semanage boolean can also be used to manipulate the booleans
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272 system-config-selinux is a GUI tool available to customize SELinux pol‐
273 icy settings.
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277 This manual page was auto-generated using sepolicy manpage .
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281 selinux(8), sensord(8), semanage(8), restorecon(8), chcon(1), sepol‐
282 icy(8) , setsebool(8)
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286sensord 19-04-25 sensord_selinux(8)