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 deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Enabled by default.
64 setsebool -P deny_execmem 1
66 If you want to control the ability to mmap a low area of the address
70 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
71 the mmap_low_allowed boolean. Disabled by default.
72 setsebool -P mmap_low_allowed 1
74 If you want to disable kernel module loading, you must turn on the se‐
78 cure_mode_insmod boolean. Enabled by default.
79 setsebool -P secure_mode_insmod 1
81 If you want to allow unconfined executables to make their heap memory
85 executable. Doing this is a really bad idea. Probably indicates a
86 badly coded executable, but could indicate an attack. This executable
87 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
88 echeap boolean. Disabled by default.
89 setsebool -P selinuxuser_execheap 1
91 If you want to allow unconfined executables to make their stack exe‐
95 cutable. This should never, ever be necessary. Probably indicates a
96 badly coded executable, but could indicate an attack. This executable
97 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
98 stack boolean. Enabled by default.
99 setsebool -P selinuxuser_execstack 1
101
105 The SELinux process type cinder_scheduler_t can manage files labeled
106 with the following file types. The paths listed are the default paths
107 for these file types. Note the processes UID still need to have DAC
108 permissions.
109 file_type
111 all files on the system
113
116 SELinux requires files to have an extended attribute to define the file
117 type.
118 You can see the context of a file using the -Z option to ls
120 Policy governs the access confined processes have to these files.
122 SELinux cinder_scheduler policy is very flexible allowing users to
123 setup their cinder_scheduler processes in as secure a method as possi‐
124 ble.
125 STANDARD FILE CONTEXT
127 SELinux defines the file context types for the cinder_scheduler, if you
129 wanted to store files with these types in a diffent paths, you need to
130 execute the semanage command to specify alternate labeling and then use
131 restorecon to put the labels on disk.
132 semanage fcontext -a -t cinder_scheduler_tmp_t '/srv/mycinder_sched‐
134 uler_content(/.*)?'
135 restorecon -R -v /srv/mycinder_scheduler_content
136 Note: SELinux often uses regular expressions to specify labels that
138 match multiple files.
139 The following file types are defined for cinder_scheduler:
141 cinder_scheduler_exec_t
145 - Set files with the cinder_scheduler_exec_t type, if you want to tran‐
147 sition an executable to the cinder_scheduler_t domain.
148 cinder_scheduler_tmp_t
152 - Set files with the cinder_scheduler_tmp_t type, if you want to store
154 cinder scheduler temporary files in the /tmp directories.
155 cinder_scheduler_unit_file_t
159 - Set files with the cinder_scheduler_unit_file_t type, if you want to
161 treat the files as cinder scheduler unit content.
162 Note: File context can be temporarily modified with the chcon command.
166 If you want to permanently change the file context you need to use the
167 semanage fcontext command. This will modify the SELinux labeling data‐
168 base. You will need to use restorecon to apply the labels.
169
172 semanage fcontext can also be used to manipulate default file context
173 mappings.
174 semanage permissive can also be used to manipulate whether or not a
176 process type is permissive.
177 semanage module can also be used to enable/disable/install/remove pol‐
179 icy modules.
180 semanage boolean can also be used to manipulate the booleans
182 system-config-selinux is a GUI tool available to customize SELinux pol‐
185 icy settings.
186
189 This manual page was auto-generated using sepolicy manpage .
190
193 selinux(8), cinder_scheduler(8), semanage(8), restorecon(8), chcon(1),
194 sepolicy(8), setsebool(8)
195cinder_scheduler 21-11-19 cinder_scheduler_selinux(8)