clvmd_selinux(8)

1clvmd_selinux(8)             SELinux Policy clvmd             clvmd_selinux(8)
2
3
4

NAME

6       clvmd_selinux - Security Enhanced Linux Policy for the clvmd processes
7

DESCRIPTION

9       Security-Enhanced Linux secures the clvmd processes via flexible manda‐
10       tory access control.
11
12       The clvmd processes execute with the  clvmd_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
15
16       For example:
17
18       ps -eZ | grep clvmd_t
19
20
21

ENTRYPOINTS

23       The clvmd_t SELinux type can be entered via the file_type, unlabeled_t,
24       proc_type,  filesystem_type,  mtrr_device_t,  sysctl_type, clvmd_exec_t
25       file types.
26
27       The default entrypoint paths for the clvmd_t domain are the following:
28
29       all files on the system, /dev/cpu/mtrr, /usr/sbin/clvmd
30

PROCESS TYPES

32       SELinux defines process types (domains) for each process running on the
33       system
34
35       You can see the context of a process using the -Z option to ps
36
37       Policy  governs  the  access confined processes have to files.  SELinux
38       clvmd policy is very flexible allowing users to setup their clvmd  pro‐
39       cesses in as secure a method as possible.
40
41       The following process types are defined for clvmd:
42
43       clvmd_t
44
45       Note:  semanage  permissive  -a clvmd_t can be used to make the process
46       type clvmd_t permissive. SELinux does not  deny  access  to  permissive
47       process  types, but the AVC (SELinux denials) messages are still gener‐
48       ated.
49
50

BOOLEANS

52       SELinux policy is customizable based on least access  required.   clvmd
53       policy is extremely flexible and has several booleans that allow you to
54       manipulate the policy and run clvmd with the tightest access possible.
55
56
57
58       If you want to allow all daemons to write corefiles to /, you must turn
59       on the allow_daemons_dump_core boolean. Disabled by default.
60
61       setsebool -P allow_daemons_dump_core 1
62
63
64
65       If  you want to allow all daemons to use tcp wrappers, you must turn on
66       the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
67
68       setsebool -P allow_daemons_use_tcp_wrapper 1
69
70
71
72       If you want to allow all daemons the ability to  read/write  terminals,
73       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
74       default.
75
76       setsebool -P allow_daemons_use_tty 1
77
78
79
80       If you want to allow all domains to use other domains file descriptors,
81       you must turn on the allow_domain_fd_use boolean. Enabled by default.
82
83       setsebool -P allow_domain_fd_use 1
84
85
86
87       If  you  want to allow unconfined executables to make their heap memory
88       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
89       badly  coded  executable, but could indicate an attack. This executable
90       should be reported in bugzilla, you must  turn  on  the  allow_execheap
91       boolean. Disabled by default.
92
93       setsebool -P allow_execheap 1
94
95
96
97       If  you  want to allow unconfined executables to map a memory region as
98       both executable and writable, this  is  dangerous  and  the  executable
99       should  be  reported  in  bugzilla), you must turn on the allow_execmem
100       boolean. Enabled by default.
101
102       setsebool -P allow_execmem 1
103
104
105
106       If you want to  allow  all  unconfined  executables  to  use  libraries
107       requiring  text  relocation  that are not labeled textrel_shlib_t), you
108       must turn on the allow_execmod boolean. Enabled by default.
109
110       setsebool -P allow_execmod 1
111
112
113
114       If you want to allow unconfined executables to make  their  stack  exe‐
115       cutable.   This  should  never, ever be necessary. Probably indicates a
116       badly coded executable, but could indicate an attack.  This  executable
117       should  be  reported in bugzilla), you must turn on the allow_execstack
118       boolean. Enabled by default.
119
120       setsebool -P allow_execstack 1
121
122
123
124       If you want to allow confined applications to run  with  kerberos,  you
125       must turn on the allow_kerberos boolean. Enabled by default.
126
127       setsebool -P allow_kerberos 1
128
129
130
131       If  you want to allow sysadm to debug or ptrace all processes, you must
132       turn on the allow_ptrace boolean. Disabled by default.
133
134       setsebool -P allow_ptrace 1
135
136
137
138       If you want to allow system to run with  NIS,  you  must  turn  on  the
139       allow_ypbind boolean. Disabled by default.
140
141       setsebool -P allow_ypbind 1
142
143
144
145       If  you  want  to enable cluster mode for daemons, you must turn on the
146       daemons_enable_cluster_mode boolean. Disabled by default.
147
148       setsebool -P daemons_enable_cluster_mode 1
149
150
151
152       If you want to allow all domains to have the kernel load  modules,  you
153       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
154       default.
155
156       setsebool -P domain_kernel_load_modules 1
157
158
159
160       If you want to allow all domains to execute in fips_mode, you must turn
161       on the fips_mode boolean. Enabled by default.
162
163       setsebool -P fips_mode 1
164
165
166
167       If you want to enable reading of urandom for all domains, you must turn
168       on the global_ssp boolean. Disabled by default.
169
170       setsebool -P global_ssp 1
171
172
173
174       If you want to enable support for upstart as the init program, you must
175       turn on the init_upstart boolean. Enabled by default.
176
177       setsebool -P init_upstart 1
178
179
180
181       If  you  want to allow certain domains to map low memory in the kernel,
182       you must turn on the mmap_low_allowed boolean. Disabled by default.
183
184       setsebool -P mmap_low_allowed 1
185
186
187
188       If you want to allow confined applications to use nscd  shared  memory,
189       you must turn on the nscd_use_shm boolean. Enabled by default.
190
191       setsebool -P nscd_use_shm 1
192
193
194
195       If  you want to boolean to determine whether the system permits loading
196       policy, setting enforcing mode, and changing boolean values.  Set  this
197       to  true  and  you  have to reboot to set it back, you must turn on the
198       secure_mode_policyload boolean. Disabled by default.
199
200       setsebool -P secure_mode_policyload 1
201
202
203
204       If you want to support X userspace object manager, you must turn on the
205       xserver_object_manager boolean. Disabled by default.
206
207       setsebool -P xserver_object_manager 1
208
209
210

MANAGED FILES

212       The SELinux process type clvmd_t can manage files labeled with the fol‐
213       lowing file types.  The paths listed are the default  paths  for  these
214       file types.  Note the processes UID still need to have DAC permissions.
215
216       file_type
217
218            all files on the system
219
220

FILE CONTEXTS

222       SELinux requires files to have an extended attribute to define the file
223       type.
224
225       You can see the context of a file using the -Z option to ls
226
227       Policy governs the access  confined  processes  have  to  these  files.
228       SELinux  clvmd  policy  is  very flexible allowing users to setup their
229       clvmd processes in as secure a method as possible.
230
231       STANDARD FILE CONTEXT
232
233       SELinux defines the file context types for the clvmd, if you wanted  to
234       store  files  with  these types in a diffent paths, you need to execute
235       the semanage command  to  sepecify  alternate  labeling  and  then  use
236       restorecon to put the labels on disk.
237
238       semanage fcontext -a -t clvmd_var_run_t '/srv/myclvmd_content(/.*)?'
239       restorecon -R -v /srv/myclvmd_content
240
241       Note:  SELinux  often  uses  regular expressions to specify labels that
242       match multiple files.
243
244       The following file types are defined for clvmd:
245
246
247
248       clvmd_exec_t
249
250       - Set files with the clvmd_exec_t type, if you want  to  transition  an
251       executable to the clvmd_t domain.
252
253
254
255       clvmd_initrc_exec_t
256
257       -  Set  files with the clvmd_initrc_exec_t type, if you want to transi‐
258       tion an executable to the clvmd_initrc_t domain.
259
260
261
262       clvmd_tmpfs_t
263
264       - Set files with the clvmd_tmpfs_t type, if you  want  to  store  clvmd
265       files on a tmpfs file system.
266
267
268
269       clvmd_var_run_t
270
271       -  Set  files  with  the clvmd_var_run_t type, if you want to store the
272       clvmd files under the /run or /var/run directory.
273
274
275
276       Note: File context can be temporarily modified with the chcon  command.
277       If  you want to permanently change the file context you need to use the
278       semanage fcontext command.  This will modify the SELinux labeling data‐
279       base.  You will need to use restorecon to apply the labels.
280
281

COMMANDS

283       semanage  fcontext  can also be used to manipulate default file context
284       mappings.
285
286       semanage permissive can also be used to manipulate  whether  or  not  a
287       process type is permissive.
288
289       semanage  module can also be used to enable/disable/install/remove pol‐
290       icy modules.
291
292       semanage boolean can also be used to manipulate the booleans
293
294
295       system-config-selinux is a GUI tool available to customize SELinux pol‐
296       icy settings.
297
298

AUTHOR

300       This manual page was auto-generated using sepolicy manpage .
301
302