1cinder_scheduler_selinux(S8E)Linux Policy cinder_scheduclienrder_scheduler_selinux(8)
2
6 cinder_scheduler_selinux - Security Enhanced Linux Policy for the cin‐
7 der_scheduler processes
8
10 Security-Enhanced Linux secures the cinder_scheduler processes via
11 flexible mandatory access control.
12 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.
16 For example:
18 ps -eZ | grep cinder_scheduler_t
20
24 The cinder_scheduler_t SELinux type can be entered via the cin‐
25 der_scheduler_exec_t file type.
26 The default entrypoint paths for the cinder_scheduler_t domain are the
28 following:
29 /usr/bin/cinder-scheduler
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 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.
41 The following process types are defined for cinder_scheduler:
43 cinder_scheduler_t
45 Note: semanage permissive -a cinder_scheduler_t can be used to make the
47 process type cinder_scheduler_t permissive. SELinux does not deny ac‐
48 cess to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
50
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.
57 If you want to dontaudit all daemons scheduling requests (setsched,
61 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
62 Enabled by default.
63 setsebool -P daemons_dontaudit_scheduling 1
65 If you want to deny user domains applications to map a memory region as
69 both executable and writable, this is dangerous and the executable
70 should be reported in bugzilla, you must turn on the deny_execmem bool‐
71 ean. Disabled by default.
72 setsebool -P deny_execmem 1
74 If you want to control the ability to mmap a low area of the address
78 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
79 the mmap_low_allowed boolean. Disabled by default.
80 setsebool -P mmap_low_allowed 1
82 If you want to disable kernel module loading, you must turn on the se‐
86 cure_mode_insmod boolean. Disabled by default.
87 setsebool -P secure_mode_insmod 1
89 If you want to allow unconfined executables to make their heap memory
93 executable. Doing this is a really bad idea. Probably indicates a
94 badly coded executable, but could indicate an attack. This executable
95 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
96 echeap boolean. Disabled by default.
97 setsebool -P selinuxuser_execheap 1
99 If you want to allow unconfined executables to make their stack exe‐
103 cutable. This should never, ever be necessary. Probably indicates a
104 badly coded executable, but could indicate an attack. This executable
105 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
106 stack boolean. Enabled by default.
107 setsebool -P selinuxuser_execstack 1
109
113 The SELinux process type cinder_scheduler_t can manage files labeled
114 with the following file types. The paths listed are the default paths
115 for these file types. Note the processes UID still need to have DAC
116 permissions.
117 file_type
119 all files on the system
121
124 SELinux requires files to have an extended attribute to define the file
125 type.
126 You can see the context of a file using the -Z option to ls
128 Policy governs the access confined processes have to these files.
130 SELinux cinder_scheduler policy is very flexible allowing users to
131 setup their cinder_scheduler processes in as secure a method as possi‐
132 ble.
133 STANDARD FILE CONTEXT
135 SELinux defines the file context types for the cinder_scheduler, if you
137 wanted to store files with these types in a different paths, you need
138 to execute the semanage command to specify alternate labeling and then
139 use restorecon to put the labels on disk.
140 semanage fcontext -a -t cinder_scheduler_exec_t '/srv/cinder_sched‐
142 uler/content(/.*)?'
143 restorecon -R -v /srv/mycinder_scheduler_content
144 Note: SELinux often uses regular expressions to specify labels that
146 match multiple files.
147 The following file types are defined for cinder_scheduler:
149 cinder_scheduler_exec_t
153 - Set files with the cinder_scheduler_exec_t type, if you want to tran‐
155 sition an executable to the cinder_scheduler_t domain.
156 cinder_scheduler_tmp_t
160 - Set files with the cinder_scheduler_tmp_t type, if you want to store
162 cinder scheduler temporary files in the /tmp directories.
163 cinder_scheduler_unit_file_t
167 - Set files with the cinder_scheduler_unit_file_t type, if you want to
169 treat the files as cinder scheduler unit content.
170 Note: File context can be temporarily modified with the chcon command.
174 If you want to permanently change the file context you need to use the
175 semanage fcontext command. This will modify the SELinux labeling data‐
176 base. You will need to use restorecon to apply the labels.
177
180 semanage fcontext can also be used to manipulate default file context
181 mappings.
182 semanage permissive can also be used to manipulate whether or not a
184 process type is permissive.
185 semanage module can also be used to enable/disable/install/remove pol‐
187 icy modules.
188 semanage boolean can also be used to manipulate the booleans
190 system-config-selinux is a GUI tool available to customize SELinux pol‐
193 icy settings.
194
197 This manual page was auto-generated using sepolicy manpage .
198
201 selinux(8), cinder_scheduler(8), semanage(8), restorecon(8), chcon(1),
202 sepolicy(8), setsebool(8)
203cinder_scheduler 23-10-20 cinder_scheduler_selinux(8)