1cinder_volume_selinux(8) SELinux Policy cinder_volume cinder_volume_selinux(8)
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6 cinder_volume_selinux - Security Enhanced Linux Policy for the cin‐
7 der_volume processes
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10 Security-Enhanced Linux secures the cinder_volume processes via flexi‐
11 ble mandatory access control.
12 The cinder_volume processes execute with the cinder_volume_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep cinder_volume_t
20
24 The cinder_volume_t SELinux type can be entered via the cinder_vol‐
25 ume_exec_t file type.
26 The default entrypoint paths for the cinder_volume_t domain are the
28 following:
29 /usr/bin/cinder-volume
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_volume policy is very flexible allowing users to setup their
40 cinder_volume processes in as secure a method as possible.
41 The following process types are defined for cinder_volume:
43 cinder_volume_t
45 Note: semanage permissive -a cinder_volume_t can be used to make the
47 process type cinder_volume_t permissive. SELinux does not deny access
48 to permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required. cin‐
54 der_volume policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run cinder_volume with the
56 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_volume_t can manage files labeled with
106 the following file types. The paths listed are the default paths for
107 these file types. Note the processes UID still need to have DAC per‐
108 missions.
109 file_type
111 all files on the system
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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_volume policy is very flexible allowing users to setup
123 their cinder_volume processes in as secure a method as possible.
124 STANDARD FILE CONTEXT
126 SELinux defines the file context types for the cinder_volume, if you
128 wanted to store files with these types in a diffent paths, you need to
129 execute the semanage command to specify alternate labeling and then use
130 restorecon to put the labels on disk.
131 semanage fcontext -a -t cinder_volume_tmp_t '/srv/mycinder_volume_con‐
133 tent(/.*)?'
134 restorecon -R -v /srv/mycinder_volume_content
135 Note: SELinux often uses regular expressions to specify labels that
137 match multiple files.
138 The following file types are defined for cinder_volume:
140 cinder_volume_exec_t
144 - Set files with the cinder_volume_exec_t type, if you want to transi‐
146 tion an executable to the cinder_volume_t domain.
147 cinder_volume_tmp_t
151 - Set files with the cinder_volume_tmp_t type, if you want to store
153 cinder volume temporary files in the /tmp directories.
154 cinder_volume_unit_file_t
158 - Set files with the cinder_volume_unit_file_t type, if you want to
160 treat the files as cinder volume unit content.
161 Note: File context can be temporarily modified with the chcon command.
165 If you want to permanently change the file context you need to use the
166 semanage fcontext command. This will modify the SELinux labeling data‐
167 base. You will need to use restorecon to apply the labels.
168
171 semanage fcontext can also be used to manipulate default file context
172 mappings.
173 semanage permissive can also be used to manipulate whether or not a
175 process type is permissive.
176 semanage module can also be used to enable/disable/install/remove pol‐
178 icy modules.
179 semanage boolean can also be used to manipulate the booleans
181 system-config-selinux is a GUI tool available to customize SELinux pol‐
184 icy settings.
185
188 This manual page was auto-generated using sepolicy manpage .
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192 selinux(8), cinder_volume(8), semanage(8), restorecon(8), chcon(1), se‐
193 policy(8), setsebool(8)
194cinder_volume 21-11-19 cinder_volume_selinux(8)