cluster_selinux(8)

1cluster_selinux(8)          SELinux Policy cluster          cluster_selinux(8)
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NAME

6       cluster_selinux  -  Security Enhanced Linux Policy for the cluster pro‐
7       cesses
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DESCRIPTION

10       Security-Enhanced Linux secures  the  cluster  processes  via  flexible
11       mandatory access control.
12
13       The  cluster processes execute with the cluster_t SELinux type. You can
14       check if you have these processes running by executing the  ps  command
15       with the -Z qualifier.
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17       For example:
18
19       ps -eZ | grep cluster_t
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21
22

ENTRYPOINTS

24       The  cluster_t  SELinux type can be entered via the cluster_exec_t file
25       type.
26
27       The default entrypoint paths for the cluster_t domain are  the  follow‐
28       ing:
29
30       /usr/sbin/pcsd,          /usr/sbin/aisexec,         /usr/lib/pcsd/pcsd,
31       /usr/sbin/ccs_tool,       /usr/sbin/corosync,       /usr/sbin/cpglockd,
32       /usr/sbin/cman_tool,     /usr/sbin/rgmanager,     /usr/sbin/ldirectord,
33       /usr/sbin/pacemakerd, /usr/bin/corosync-qnetd, /usr/sbin/corosync-noti‐
34       fyd,      /usr/sbin/pacemaker-remoted,     /usr/sbin/pacemaker_remoted,
35       /usr/lib/heartbeat/heartbeat,             /usr/share/corosync/corosync,
36       /usr/share/corosync/corosync-qdevice
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PROCESS TYPES

39       SELinux defines process types (domains) for each process running on the
40       system
41
42       You can see the context of a process using the -Z option to ps
43
44       Policy governs the access confined processes have  to  files.   SELinux
45       cluster  policy  is very flexible allowing users to setup their cluster
46       processes in as secure a method as possible.
47
48       The following process types are defined for cluster:
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50       cluster_t
51
52       Note: semanage permissive -a cluster_t can be used to make the  process
53       type  cluster_t  permissive. SELinux does not deny access to permissive
54       process types, but the AVC (SELinux denials) messages are still  gener‐
55       ated.
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57

BOOLEANS

59       SELinux policy is customizable based on least access required.  cluster
60       policy is extremely flexible and has several booleans that allow you to
61       manipulate  the  policy and run cluster with the tightest access possi‐
62       ble.
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64
65
66       If you want to allow cluster administrative domains to connect  to  the
67       network  using  TCP,  you  must turn on the cluster_can_network_connect
68       boolean. Disabled by default.
69
70       setsebool -P cluster_can_network_connect 1
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73
74       If you want to allow cluster administrative domains to manage all files
75       on  a  system,  you  must turn on the cluster_manage_all_files boolean.
76       Disabled by default.
77
78       setsebool -P cluster_manage_all_files 1
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81
82       If you want to allow cluster administrative cluster  domains  memcheck-
83       amd64-   to   use  executable  memory,  you  must  turn  on  the  clus‐
84       ter_use_execmem boolean. Disabled by default.
85
86       setsebool -P cluster_use_execmem 1
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89
90       If you want to allow users to resolve user passwd entries directly from
91       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
92       gin_nsswitch_use_ldap boolean. Disabled by default.
93
94       setsebool -P authlogin_nsswitch_use_ldap 1
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98       If you want to deny user domains applications to map a memory region as
99       both  executable  and  writable,  this  is dangerous and the executable
100       should be reported in bugzilla, you must turn on the deny_execmem bool‐
101       ean. Enabled by default.
102
103       setsebool -P deny_execmem 1
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105
106
107       If you want to allow all domains to execute in fips_mode, you must turn
108       on the fips_mode boolean. Enabled by default.
109
110       setsebool -P fips_mode 1
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112
113
114       If you want to allow confined applications to run  with  kerberos,  you
115       must turn on the kerberos_enabled boolean. Enabled by default.
116
117       setsebool -P kerberos_enabled 1
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120
121       If  you  want  to control the ability to mmap a low area of the address
122       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
123       the mmap_low_allowed boolean. Disabled by default.
124
125       setsebool -P mmap_low_allowed 1
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127
128
129       If  you  want  to  allow  system  to run with NIS, you must turn on the
130       nis_enabled boolean. Disabled by default.
131
132       setsebool -P nis_enabled 1
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134
135
136       If you want to allow confined applications to use nscd  shared  memory,
137       you must turn on the nscd_use_shm boolean. Enabled by default.
138
139       setsebool -P nscd_use_shm 1
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142
143       If  you  want  to  disable  kernel module loading, you must turn on the
144       secure_mode_insmod boolean. Enabled by default.
145
146       setsebool -P secure_mode_insmod 1
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149
150       If you want to allow unconfined executables to make their  heap  memory
151       executable.   Doing  this  is  a  really bad idea. Probably indicates a
152       badly coded executable, but could indicate an attack.  This  executable
153       should   be   reported  in  bugzilla,  you  must  turn  on  the  selin‐
154       uxuser_execheap boolean. Disabled by default.
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156       setsebool -P selinuxuser_execheap 1
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159
160       If you want to allow unconfined executables to make  their  stack  exe‐
161       cutable.   This  should  never, ever be necessary. Probably indicates a
162       badly coded executable, but could indicate an attack.  This  executable
163       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
164       stack boolean. Enabled by default.
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166       setsebool -P selinuxuser_execstack 1
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169

NSSWITCH DOMAIN

171       If you want to allow users to resolve user passwd entries directly from
172       ldap  rather  then using a sssd server for the cluster_t, you must turn
173       on the authlogin_nsswitch_use_ldap boolean.
174
175       setsebool -P authlogin_nsswitch_use_ldap 1
176
177
178       If you want to allow confined applications to run with kerberos for the
179       cluster_t, you must turn on the kerberos_enabled boolean.
180
181       setsebool -P kerberos_enabled 1
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183

PORT TYPES

185       SELinux defines port types to represent TCP and UDP ports.
186
187       You  can  see  the  types associated with a port by using the following
188       command:
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190       semanage port -l
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193       Policy governs the access  confined  processes  have  to  these  ports.
194       SELinux  cluster  policy is very flexible allowing users to setup their
195       cluster processes in as secure a method as possible.
196
197       The following port types are defined for cluster:
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199
200       cluster_port_t
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203
204       Default Defined Ports:
205                 tcp 5149,40040,50006-50008
206                 udp 5149,50006-50008
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MANAGED FILES

209       The SELinux process type cluster_t can manage files  labeled  with  the
210       following file types.  The paths listed are the default paths for these
211       file types.  Note the processes UID still need to have DAC permissions.
212
213       file_type
214
215            all files on the system
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217

FILE CONTEXTS

219       SELinux requires files to have an extended attribute to define the file
220       type.
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222       You can see the context of a file using the -Z option to ls
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224       Policy  governs  the  access  confined  processes  have to these files.
225       SELinux cluster policy is very flexible allowing users to  setup  their
226       cluster processes in as secure a method as possible.
227
228       STANDARD FILE CONTEXT
229
230       SELinux  defines  the file context types for the cluster, if you wanted
231       to store files with these types in a diffent paths, you need to execute
232       the  semanage  command  to  sepecify  alternate  labeling  and then use
233       restorecon to put the labels on disk.
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235       semanage  fcontext  -a  -t   cluster_unit_file_t   '/srv/mycluster_con‐
236       tent(/.*)?'
237       restorecon -R -v /srv/mycluster_content
238
239       Note:  SELinux  often  uses  regular expressions to specify labels that
240       match multiple files.
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242       The following file types are defined for cluster:
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246       cluster_conf_t
247
248       - Set files with the cluster_conf_t type, if  you  want  to  treat  the
249       files  as  cluster  configuration  data,  usually stored under the /etc
250       directory.
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254       cluster_exec_t
255
256       - Set files with the cluster_exec_t type, if you want to transition  an
257       executable to the cluster_t domain.
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259
260       Paths:
261            /usr/sbin/pcsd,       /usr/sbin/aisexec,       /usr/lib/pcsd/pcsd,
262            /usr/sbin/ccs_tool,    /usr/sbin/corosync,     /usr/sbin/cpglockd,
263            /usr/sbin/cman_tool,   /usr/sbin/rgmanager,  /usr/sbin/ldirectord,
264            /usr/sbin/pacemakerd, /usr/bin/corosync-qnetd, /usr/sbin/corosync-
265            notifyd, /usr/sbin/pacemaker-remoted, /usr/sbin/pacemaker_remoted,
266            /usr/lib/heartbeat/heartbeat,        /usr/share/corosync/corosync,
267            /usr/share/corosync/corosync-qdevice
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269
270       cluster_initrc_exec_t
271
272       - Set files with the cluster_initrc_exec_t type, if you want to transi‐
273       tion an executable to the cluster_initrc_t domain.
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275
276       Paths:
277            /etc/rc.d/init.d/openais,               /etc/rc.d/init.d/corosync,
278            /etc/rc.d/init.d/cpglockd,             /etc/rc.d/init.d/heartbeat,
279            /etc/rc.d/init.d/pacemaker, /etc/rc.d/init.d/rgmanager
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281
282       cluster_tmp_t
283
284       - Set files with the cluster_tmp_t type, if you want to  store  cluster
285       temporary files in the /tmp directories.
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289       cluster_tmpfs_t
290
291       - Set files with the cluster_tmpfs_t type, if you want to store cluster
292       files on a tmpfs file system.
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296       cluster_unit_file_t
297
298       - Set files with the cluster_unit_file_t type, if you want to treat the
299       files as cluster unit content.
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301
302       Paths:
303            /usr/lib/systemd/system/pcsd.*,              /usr/lib/systemd/sys‐
304            tem/corosync.*, /usr/lib/systemd/system/pacemaker.*, /usr/lib/sys‐
305            temd/system/corosync-qnetd.*,    /usr/lib/systemd/system/corosync-
306            qdevice.*
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308
309       cluster_var_lib_t
310
311       - Set files with the cluster_var_lib_t type, if you want to  store  the
312       cluster files under the /var/lib directory.
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315       Paths:
316            /var/lib/pcsd(/.*)?,     /var/lib/cluster(/.*)?,     /var/lib/ope‐
317            nais(/.*)?,    /var/lib/pengine(/.*)?,    /var/lib/corosync(/.*)?,
318            /usr/lib/heartbeat(/.*)?, /var/lib/heartbeat(/.*)?, /var/lib/pace‐
319            maker(/.*)?
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322       cluster_var_log_t
323
324       - Set files with the cluster_var_log_t type, if you want to  treat  the
325       data  as cluster var log data, usually stored under the /var/log direc‐
326       tory.
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328
329       Paths:
330            /var/log/pcsd(/.*)?,   /var/log/pacemaker.log.*,    /var/log/clus‐
331            ter/aisexec.log.*, /var/log/cluster/corosync.log.*, /var/log/clus‐
332            ter/cpglockd.log.*, /var/log/cluster/rgmanager.log.*
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334
335       cluster_var_run_t
336
337       - Set files with the cluster_var_run_t type, if you want to  store  the
338       cluster files under the /run or /var/run directory.
339
340
341       Paths:
342            /var/run/crm(/.*)?,    /var/run/cman_.*,    /var/run/rsctmp(/.*)?,
343            /var/run/aisexec.*,  /var/run/heartbeat(/.*)?,  /var/run/corosync-
344            qnetd(/.*)?,                      /var/run/corosync-qdevice(/.*)?,
345            /var/run/corosync.pid,   /var/run/cpglockd.pid,    /var/run/rgman‐
346            ager.pid, /var/run/cluster/rgmanager.sk
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348
349       Note:  File context can be temporarily modified with the chcon command.
350       If you want to permanently change the file context you need to use  the
351       semanage fcontext command.  This will modify the SELinux labeling data‐
352       base.  You will need to use restorecon to apply the labels.
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354

COMMANDS

356       semanage fcontext can also be used to manipulate default  file  context
357       mappings.
358
359       semanage  permissive  can  also  be used to manipulate whether or not a
360       process type is permissive.
361
362       semanage module can also be used to enable/disable/install/remove  pol‐
363       icy modules.
364
365       semanage port can also be used to manipulate the port definitions
366
367       semanage boolean can also be used to manipulate the booleans
368
369
370       system-config-selinux is a GUI tool available to customize SELinux pol‐
371       icy settings.
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AUTHOR

375       This manual page was auto-generated using sepolicy manpage .
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