1cinder_volume_selinux(8) SELinux Policy cinder_volume cinder_volume_selinux(8)
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NAME

6       cinder_volume_selinux  -  Security  Enhanced  Linux Policy for the cin‐
7       der_volume processes
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DESCRIPTION

10       Security-Enhanced Linux secures the cinder_volume processes via  flexi‐
11       ble mandatory access control.
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13       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.
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17       For example:
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19       ps -eZ | grep cinder_volume_t
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ENTRYPOINTS

24       The  cinder_volume_t  SELinux  type  can be entered via the cinder_vol‐
25       ume_exec_t file type.
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27       The default entrypoint paths for the  cinder_volume_t  domain  are  the
28       following:
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30       /usr/bin/cinder-volume
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PROCESS TYPES

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_volume  policy  is  very  flexible allowing users to setup their
40       cinder_volume processes in as secure a method as possible.
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42       The following process types are defined for cinder_volume:
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44       cinder_volume_t
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46       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.
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51

BOOLEANS

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.
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60       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.
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65       setsebool -P deny_execmem 1
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69       If you want to allow all domains to execute in fips_mode, you must turn
70       on the fips_mode boolean. Enabled by default.
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72       setsebool -P fips_mode 1
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76       If you want to control the ability to mmap a low area  of  the  address
77       space,  as  configured  by /proc/sys/vm/mmap_min_addr, you must turn on
78       the mmap_low_allowed boolean. Disabled by default.
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80       setsebool -P mmap_low_allowed 1
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84       If you want to disable kernel module loading,  you  must  turn  on  the
85       secure_mode_insmod boolean. Enabled by default.
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87       setsebool -P secure_mode_insmod 1
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91       If  you  want to allow unconfined executables to make their heap memory
92       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
93       badly  coded  executable, but could indicate an attack. This executable
94       should  be  reported  in  bugzilla,  you  must  turn  on   the   selin‐
95       uxuser_execheap boolean. Disabled by default.
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97       setsebool -P selinuxuser_execheap 1
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101       If  you  want  to allow unconfined executables to make their stack exe‐
102       cutable.  This should never, ever be necessary.  Probably  indicates  a
103       badly  coded  executable, but could indicate an attack. This executable
104       should be reported in bugzilla, you must turn on the  selinuxuser_exec‐
105       stack boolean. Enabled by default.
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107       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

112       The  SELinux process type cinder_volume_t can manage files labeled with
113       the following file types.  The paths listed are the default  paths  for
114       these  file  types.  Note the processes UID still need to have DAC per‐
115       missions.
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117       file_type
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119            all files on the system
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121

FILE CONTEXTS

123       SELinux requires files to have an extended attribute to define the file
124       type.
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126       You can see the context of a file using the -Z option to ls
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128       Policy  governs  the  access  confined  processes  have to these files.
129       SELinux cinder_volume policy is very flexible allowing users  to  setup
130       their cinder_volume processes in as secure a method as possible.
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132       STANDARD FILE CONTEXT
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134       SELinux  defines  the  file context types for the cinder_volume, if you
135       wanted to store files with these types in a diffent paths, you need  to
136       execute  the  semanage  command to sepecify alternate labeling and then
137       use restorecon to put the labels on disk.
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139       semanage fcontext -a -t cinder_volume_tmp_t  '/srv/mycinder_volume_con‐
140       tent(/.*)?'
141       restorecon -R -v /srv/mycinder_volume_content
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143       Note:  SELinux  often  uses  regular expressions to specify labels that
144       match multiple files.
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146       The following file types are defined for cinder_volume:
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150       cinder_volume_exec_t
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152       - Set files with the cinder_volume_exec_t type, if you want to  transi‐
153       tion an executable to the cinder_volume_t domain.
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157       cinder_volume_tmp_t
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159       -  Set  files  with  the cinder_volume_tmp_t type, if you want to store
160       cinder volume temporary files in the /tmp directories.
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164       cinder_volume_unit_file_t
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166       - Set files with the cinder_volume_unit_file_t type,  if  you  want  to
167       treat the files as cinder volume unit content.
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171       Note:  File context can be temporarily modified with the chcon command.
172       If you want to permanently change the file context you need to use  the
173       semanage fcontext command.  This will modify the SELinux labeling data‐
174       base.  You will need to use restorecon to apply the labels.
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COMMANDS

178       semanage fcontext can also be used to manipulate default  file  context
179       mappings.
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181       semanage  permissive  can  also  be used to manipulate whether or not a
182       process type is permissive.
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184       semanage module can also be used to enable/disable/install/remove  pol‐
185       icy modules.
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187       semanage boolean can also be used to manipulate the booleans
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189
190       system-config-selinux is a GUI tool available to customize SELinux pol‐
191       icy settings.
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AUTHOR

195       This manual page was auto-generated using sepolicy manpage .
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SEE ALSO

199       selinux(8),  cinder_volume(8),  semanage(8),  restorecon(8),  chcon(1),
200       sepolicy(8), setsebool(8)
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204cinder_volume                      19-10-08           cinder_volume_selinux(8)
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