1nova_volume_selinux(8)    SELinux Policy nova_volume    nova_volume_selinux(8)
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NAME

6       nova_volume_selinux  - Security Enhanced Linux Policy for the nova_vol‐
7       ume processes
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DESCRIPTION

10       Security-Enhanced Linux secures the nova_volume processes via  flexible
11       mandatory access control.
12
13       The  nova_volume processes execute with the nova_volume_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep nova_volume_t
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21
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ENTRYPOINTS

24       The  nova_volume_t SELinux type can be entered via the file_type, unla‐
25       beled_t, proc_type, filesystem_type, mtrr_device_t, nova_volume_exec_t,
26       sysctl_type file types.
27
28       The  default entrypoint paths for the nova_volume_t domain are the fol‐
29       lowing:
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31       all files on the system, /dev/cpu/mtrr, /usr/bin/nova-volume
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PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
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37       You can see the context of a process using the -Z option to ps
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39       Policy  governs  the  access confined processes have to files.  SELinux
40       nova_volume policy is very  flexible  allowing  users  to  setup  their
41       nova_volume processes in as secure a method as possible.
42
43       The following process types are defined for nova_volume:
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45       nova_volume_t
46
47       Note:  semanage  permissive  -a  nova_volume_t  can be used to make the
48       process type nova_volume_t permissive. SELinux does not deny access  to
49       permissive  process  types,  but the AVC (SELinux denials) messages are
50       still generated.
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52

BOOLEANS

54       SELinux  policy  is  customizable  based  on  least  access   required.
55       nova_volume  policy is extremely flexible and has several booleans that
56       allow you to manipulate the policy and run nova_volume with the  tight‐
57       est access possible.
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61       If you want to allow all daemons to write corefiles to /, you must turn
62       on the allow_daemons_dump_core boolean. Disabled by default.
63
64       setsebool -P allow_daemons_dump_core 1
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67
68       If you want to allow all daemons to use tcp wrappers, you must turn  on
69       the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
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71       setsebool -P allow_daemons_use_tcp_wrapper 1
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75       If  you  want to allow all daemons the ability to read/write terminals,
76       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
77       default.
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79       setsebool -P allow_daemons_use_tty 1
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83       If you want to allow all domains to use other domains file descriptors,
84       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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86       setsebool -P allow_domain_fd_use 1
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89
90       If you want to allow unconfined executables to make their  heap  memory
91       executable.   Doing  this  is  a  really bad idea. Probably indicates a
92       badly coded executable, but could indicate an attack.  This  executable
93       should  be  reported  in  bugzilla, you must turn on the allow_execheap
94       boolean. Disabled by default.
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96       setsebool -P allow_execheap 1
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100       If you want to allow unconfined executables to map a memory  region  as
101       both  executable  and  writable,  this  is dangerous and the executable
102       should be reported in bugzilla), you must  turn  on  the  allow_execmem
103       boolean. Enabled by default.
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105       setsebool -P allow_execmem 1
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107
108
109       If  you  want  to  allow  all  unconfined  executables to use libraries
110       requiring text relocation that are not  labeled  textrel_shlib_t),  you
111       must turn on the allow_execmod boolean. Enabled by default.
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113       setsebool -P allow_execmod 1
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116
117       If  you  want  to allow unconfined executables to make their stack exe‐
118       cutable.  This should never, ever be necessary.  Probably  indicates  a
119       badly  coded  executable, but could indicate an attack. This executable
120       should be reported in bugzilla), you must turn on  the  allow_execstack
121       boolean. Enabled by default.
122
123       setsebool -P allow_execstack 1
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126
127       If  you want to allow sysadm to debug or ptrace all processes, you must
128       turn on the allow_ptrace boolean. Disabled by default.
129
130       setsebool -P allow_ptrace 1
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133
134       If you want to enable cluster mode for daemons, you must  turn  on  the
135       daemons_enable_cluster_mode boolean. Disabled by default.
136
137       setsebool -P daemons_enable_cluster_mode 1
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139
140
141       If  you  want to allow all domains to have the kernel load modules, you
142       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
143       default.
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145       setsebool -P domain_kernel_load_modules 1
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148
149       If you want to allow all domains to execute in fips_mode, you must turn
150       on the fips_mode boolean. Enabled by default.
151
152       setsebool -P fips_mode 1
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154
155
156       If you want to enable reading of urandom for all domains, you must turn
157       on the global_ssp boolean. Disabled by default.
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159       setsebool -P global_ssp 1
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162
163       If you want to enable support for upstart as the init program, you must
164       turn on the init_upstart boolean. Enabled by default.
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166       setsebool -P init_upstart 1
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169
170       If you want to allow certain domains to map low memory in  the  kernel,
171       you must turn on the mmap_low_allowed boolean. Disabled by default.
172
173       setsebool -P mmap_low_allowed 1
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176
177       If  you want to boolean to determine whether the system permits loading
178       policy, setting enforcing mode, and changing boolean values.  Set  this
179       to  true  and  you  have to reboot to set it back, you must turn on the
180       secure_mode_policyload boolean. Disabled by default.
181
182       setsebool -P secure_mode_policyload 1
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185
186       If you want to support X userspace object manager, you must turn on the
187       xserver_object_manager boolean. Disabled by default.
188
189       setsebool -P xserver_object_manager 1
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192

MANAGED FILES

194       The  SELinux  process  type nova_volume_t can manage files labeled with
195       the following file types.  The paths listed are the default  paths  for
196       these  file  types.  Note the processes UID still need to have DAC per‐
197       missions.
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199       file_type
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201            all files on the system
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203

FILE CONTEXTS

205       SELinux requires files to have an extended attribute to define the file
206       type.
207
208       You can see the context of a file using the -Z option to ls
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210       Policy  governs  the  access  confined  processes  have to these files.
211       SELinux nova_volume policy is very flexible  allowing  users  to  setup
212       their nova_volume processes in as secure a method as possible.
213
214       STANDARD FILE CONTEXT
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216       SELinux  defines  the  file  context  types for the nova_volume, if you
217       wanted to store files with these types in a diffent paths, you need  to
218       execute  the  semanage  command to sepecify alternate labeling and then
219       use restorecon to put the labels on disk.
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221       semanage  fcontext  -a  -t  nova_volume_tmp_t  '/srv/mynova_volume_con‐
222       tent(/.*)?'
223       restorecon -R -v /srv/mynova_volume_content
224
225       Note:  SELinux  often  uses  regular expressions to specify labels that
226       match multiple files.
227
228       The following file types are defined for nova_volume:
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232       nova_volume_exec_t
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234       - Set files with the nova_volume_exec_t type, if you want to transition
235       an executable to the nova_volume_t domain.
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239       nova_volume_initrc_exec_t
240
241       -  Set  files  with  the nova_volume_initrc_exec_t type, if you want to
242       transition an executable to the nova_volume_initrc_t domain.
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246       nova_volume_tmp_t
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248       - Set files with the nova_volume_tmp_t type, if you want to store  nova
249       volume temporary files in the /tmp directories.
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253       Note:  File context can be temporarily modified with the chcon command.
254       If you want to permanently change the file context you need to use  the
255       semanage fcontext command.  This will modify the SELinux labeling data‐
256       base.  You will need to use restorecon to apply the labels.
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COMMANDS

260       semanage fcontext can also be used to manipulate default  file  context
261       mappings.
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263       semanage  permissive  can  also  be used to manipulate whether or not a
264       process type is permissive.
265
266       semanage module can also be used to enable/disable/install/remove  pol‐
267       icy modules.
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269       semanage boolean can also be used to manipulate the booleans
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271
272       system-config-selinux is a GUI tool available to customize SELinux pol‐
273       icy settings.
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AUTHOR

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

281       selinux(8), nova_volume(8), semanage(8), restorecon(8), chcon(1) , set‐
282       sebool(8)
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286nova_volume                        15-06-03             nova_volume_selinux(8)
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