1cinder_scheduler_selinux(S8E)Linux Policy cinder_scheduclienrder_scheduler_selinux(8)
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6 cinder_scheduler_selinux - Security Enhanced Linux Policy for the cin‐
7 der_scheduler processes
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10 Security-Enhanced Linux secures the cinder_scheduler processes via
11 flexible mandatory access control.
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13 The cinder_scheduler processes execute with the cinder_scheduler_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep cinder_scheduler_t
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24 The cinder_scheduler_t SELinux type can be entered via the cin‐
25 der_scheduler_exec_t file type.
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27 The default entrypoint paths for the cinder_scheduler_t domain are the
28 following:
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30 /usr/bin/cinder-scheduler
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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 cinder_scheduler policy is very flexible allowing users to setup their
40 cinder_scheduler processes in as secure a method as possible.
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42 The following process types are defined for cinder_scheduler:
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44 cinder_scheduler_t
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46 Note: semanage permissive -a cinder_scheduler_t can be used to make the
47 process type cinder_scheduler_t permissive. SELinux does not deny
48 access to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
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53 SELinux policy is customizable based on least access required. cin‐
54 der_scheduler policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run cinder_scheduler with
56 the tightest access possible.
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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 user domains applications to map a memory region as
89 both executable and writable, this is dangerous and the executable
90 should be reported in bugzilla, you must turn on the deny_execmem bool‐
91 ean. Enabled by default.
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93 setsebool -P deny_execmem 1
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97 If you want to deny any process from ptracing or debugging any other
98 processes, you must turn on the deny_ptrace boolean. Enabled by
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101 setsebool -P deny_ptrace 1
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105 If you want to allow any process to mmap any file on system with
106 attribute file_type, you must turn on the domain_can_mmap_files bool‐
107 ean. Enabled by default.
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109 setsebool -P domain_can_mmap_files 1
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113 If you want to allow all domains write to kmsg_device, while kernel is
114 executed with systemd.log_target=kmsg parameter, you must turn on the
115 domain_can_write_kmsg boolean. Disabled by default.
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117 setsebool -P domain_can_write_kmsg 1
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121 If you want to allow all domains to use other domains file descriptors,
122 you must turn on the domain_fd_use boolean. Enabled by default.
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124 setsebool -P domain_fd_use 1
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128 If you want to allow all domains to have the kernel load modules, you
129 must turn on the domain_kernel_load_modules boolean. Disabled by
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132 setsebool -P domain_kernel_load_modules 1
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136 If you want to allow all domains to execute in fips_mode, you must turn
137 on the fips_mode boolean. Enabled by default.
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139 setsebool -P fips_mode 1
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143 If you want to enable reading of urandom for all domains, you must turn
144 on the global_ssp boolean. Disabled by default.
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146 setsebool -P global_ssp 1
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150 If you want to control the ability to mmap a low area of the address
151 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
152 the mmap_low_allowed boolean. Disabled by default.
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154 setsebool -P mmap_low_allowed 1
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158 If you want to disable kernel module loading, you must turn on the
159 secure_mode_insmod boolean. Enabled by default.
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161 setsebool -P secure_mode_insmod 1
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165 If you want to boolean to determine whether the system permits loading
166 policy, setting enforcing mode, and changing boolean values. Set this
167 to true and you have to reboot to set it back, you must turn on the
168 secure_mode_policyload boolean. Enabled by default.
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170 setsebool -P secure_mode_policyload 1
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174 If you want to allow unconfined executables to make their heap memory
175 executable. Doing this is a really bad idea. Probably indicates a
176 badly coded executable, but could indicate an attack. This executable
177 should be reported in bugzilla, you must turn on the selin‐
178 uxuser_execheap boolean. Disabled by default.
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180 setsebool -P selinuxuser_execheap 1
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184 If you want to allow all unconfined executables to use libraries
185 requiring text relocation that are not labeled textrel_shlib_t, you
186 must turn on the selinuxuser_execmod boolean. Enabled by default.
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188 setsebool -P selinuxuser_execmod 1
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192 If you want to allow unconfined executables to make their stack exe‐
193 cutable. This should never, ever be necessary. Probably indicates a
194 badly coded executable, but could indicate an attack. This executable
195 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
196 stack boolean. Enabled by default.
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198 setsebool -P selinuxuser_execstack 1
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202 If you want to support X userspace object manager, you must turn on the
203 xserver_object_manager boolean. Enabled by default.
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205 setsebool -P xserver_object_manager 1
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210 The SELinux process type cinder_scheduler_t can manage files labeled
211 with the following file types. The paths listed are the default paths
212 for these file types. Note the processes UID still need to have DAC
213 permissions.
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215 file_type
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217 all files on the system
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221 SELinux requires files to have an extended attribute to define the file
222 type.
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224 You can see the context of a file using the -Z option to ls
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226 Policy governs the access confined processes have to these files.
227 SELinux cinder_scheduler policy is very flexible allowing users to set‐
228 up their cinder_scheduler processes in as secure a method as possible.
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230 STANDARD FILE CONTEXT
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232 SELinux defines the file context types for the cinder_scheduler, if you
233 wanted to store files with these types in a diffent paths, you need to
234 execute the semanage command to sepecify alternate labeling and then
235 use restorecon to put the labels on disk.
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237 semanage fcontext -a -t cinder_scheduler_unit_file_t '/srv/mycin‐
238 der_scheduler_content(/.*)?'
239 restorecon -R -v /srv/mycinder_scheduler_content
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241 Note: SELinux often uses regular expressions to specify labels that
242 match multiple files.
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244 The following file types are defined for cinder_scheduler:
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248 cinder_scheduler_exec_t
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250 - Set files with the cinder_scheduler_exec_t type, if you want to tran‐
251 sition an executable to the cinder_scheduler_t domain.
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255 cinder_scheduler_tmp_t
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257 - Set files with the cinder_scheduler_tmp_t type, if you want to store
258 cinder scheduler temporary files in the /tmp directories.
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262 cinder_scheduler_unit_file_t
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264 - Set files with the cinder_scheduler_unit_file_t type, if you want to
265 treat the files as cinder scheduler unit content.
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269 Note: File context can be temporarily modified with the chcon command.
270 If you want to permanently change the file context you need to use the
271 semanage fcontext command. This will modify the SELinux labeling data‐
272 base. You will need to use restorecon to apply the labels.
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276 semanage fcontext can also be used to manipulate default file context
277 mappings.
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279 semanage permissive can also be used to manipulate whether or not a
280 process type is permissive.
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282 semanage module can also be used to enable/disable/install/remove pol‐
283 icy modules.
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285 semanage boolean can also be used to manipulate the booleans
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288 system-config-selinux is a GUI tool available to customize SELinux pol‐
289 icy settings.
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293 This manual page was auto-generated using sepolicy manpage .
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297 selinux(8), cinder_scheduler(8), semanage(8), restorecon(8), chcon(1),
298 sepolicy(8) , setsebool(8)
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302cinder_scheduler 19-04-25 cinder_scheduler_selinux(8)