1openvswitch_selinux(8) SELinux Policy openvswitch openvswitch_selinux(8)
2
6 openvswitch_selinux - Security Enhanced Linux Policy for the open‐
7 vswitch processes
8
10 Security-Enhanced Linux secures the openvswitch processes via flexible
11 mandatory access control.
12 The openvswitch processes execute with the openvswitch_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16 For example:
18 ps -eZ | grep openvswitch_t
20
24 The openvswitch_t SELinux type can be entered via the file_type, unla‐
25 beled_t, proc_type, filesystem_type, openvswitch_exec_t, mtrr_device_t,
26 sysctl_type file types.
27 The default entrypoint paths for the openvswitch_t domain are the fol‐
29 lowing:
30 all files on the system, /usr/bin/ovs-vsctl, /usr/sbin/ovsdb-ctl,
32 /usr/bin/ovs-appctl, /usr/sbin/ovsdb-server, /usr/sbin/ovs-vswitchd,
33 /usr/share/openvswitch/scripts/ovs-ctl, /dev/cpu/mtrr
34
36 SELinux defines process types (domains) for each process running on the
37 system
38 You can see the context of a process using the -Z option to ps
40 Policy governs the access confined processes have to files. SELinux
42 openvswitch policy is very flexible allowing users to setup their open‐
43 vswitch processes in as secure a method as possible.
44 The following process types are defined for openvswitch:
46 openvswitch_t
48 Note: semanage permissive -a openvswitch_t can be used to make the
50 process type openvswitch_t permissive. SELinux does not deny access to
51 permissive process types, but the AVC (SELinux denials) messages are
52 still generated.
53
56 SELinux policy is customizable based on least access required. open‐
57 vswitch policy is extremely flexible and has several booleans that
58 allow you to manipulate the policy and run openvswitch with the tight‐
59 est access possible.
60 If you want to allow all daemons to write corefiles to /, you must turn
64 on the allow_daemons_dump_core boolean. Disabled by default.
65 setsebool -P allow_daemons_dump_core 1
67 If you want to allow all daemons to use tcp wrappers, you must turn on
71 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
72 setsebool -P allow_daemons_use_tcp_wrapper 1
74 If you want to allow all daemons the ability to read/write terminals,
78 you must turn on the allow_daemons_use_tty boolean. Disabled by
79 default.
80 setsebool -P allow_daemons_use_tty 1
82 If you want to allow all domains to use other domains file descriptors,
86 you must turn on the allow_domain_fd_use boolean. Enabled by default.
87 setsebool -P allow_domain_fd_use 1
89 If you want to allow unconfined executables to make their heap memory
93 executable. Doing this is a really bad idea. Probably indicates a
94 badly coded executable, but could indicate an attack. This executable
95 should be reported in bugzilla, you must turn on the allow_execheap
96 boolean. Disabled by default.
97 setsebool -P allow_execheap 1
99 If you want to allow unconfined executables to map a memory region as
103 both executable and writable, this is dangerous and the executable
104 should be reported in bugzilla), you must turn on the allow_execmem
105 boolean. Enabled by default.
106 setsebool -P allow_execmem 1
108 If you want to allow all unconfined executables to use libraries
112 requiring text relocation that are not labeled textrel_shlib_t), you
113 must turn on the allow_execmod boolean. Enabled by default.
114 setsebool -P allow_execmod 1
116 If you want to allow unconfined executables to make their stack exe‐
120 cutable. This should never, ever be necessary. Probably indicates a
121 badly coded executable, but could indicate an attack. This executable
122 should be reported in bugzilla), you must turn on the allow_execstack
123 boolean. Enabled by default.
124 setsebool -P allow_execstack 1
126 If you want to allow confined applications to run with kerberos, you
130 must turn on the allow_kerberos boolean. Enabled by default.
131 setsebool -P allow_kerberos 1
133 If you want to allow sysadm to debug or ptrace all processes, you must
137 turn on the allow_ptrace boolean. Disabled by default.
138 setsebool -P allow_ptrace 1
140 If you want to allow system to run with NIS, you must turn on the
144 allow_ypbind boolean. Disabled by default.
145 setsebool -P allow_ypbind 1
147 If you want to enable cluster mode for daemons, you must turn on the
151 daemons_enable_cluster_mode boolean. Disabled by default.
152 setsebool -P daemons_enable_cluster_mode 1
154 If you want to allow all domains to have the kernel load modules, you
158 must turn on the domain_kernel_load_modules boolean. Disabled by
159 default.
160 setsebool -P domain_kernel_load_modules 1
162 If you want to allow all domains to execute in fips_mode, you must turn
166 on the fips_mode boolean. Enabled by default.
167 setsebool -P fips_mode 1
169 If you want to enable reading of urandom for all domains, you must turn
173 on the global_ssp boolean. Disabled by default.
174 setsebool -P global_ssp 1
176 If you want to enable support for upstart as the init program, you must
180 turn on the init_upstart boolean. Enabled by default.
181 setsebool -P init_upstart 1
183 If you want to allow certain domains to map low memory in the kernel,
187 you must turn on the mmap_low_allowed boolean. Disabled by default.
188 setsebool -P mmap_low_allowed 1
190 If you want to allow confined applications to use nscd shared memory,
194 you must turn on the nscd_use_shm boolean. Enabled by default.
195 setsebool -P nscd_use_shm 1
197 If you want to boolean to determine whether the system permits loading
201 policy, setting enforcing mode, and changing boolean values. Set this
202 to true and you have to reboot to set it back, you must turn on the
203 secure_mode_policyload boolean. Disabled by default.
204 setsebool -P secure_mode_policyload 1
206 If you want to support X userspace object manager, you must turn on the
210 xserver_object_manager boolean. Disabled by default.
211 setsebool -P xserver_object_manager 1
213
217 The SELinux process type openvswitch_t can manage files labeled with
218 the following file types. The paths listed are the default paths for
219 these file types. Note the processes UID still need to have DAC per‐
220 missions.
221 file_type
223 all files on the system
225
228 SELinux requires files to have an extended attribute to define the file
229 type.
230 You can see the context of a file using the -Z option to ls
232 Policy governs the access confined processes have to these files.
234 SELinux openvswitch policy is very flexible allowing users to setup
235 their openvswitch processes in as secure a method as possible.
236 STANDARD FILE CONTEXT
238 SELinux defines the file context types for the openvswitch, if you
240 wanted to store files with these types in a diffent paths, you need to
241 execute the semanage command to sepecify alternate labeling and then
242 use restorecon to put the labels on disk.
243 semanage fcontext -a -t openvswitch_var_run_t '/srv/myopenvswitch_con‐
245 tent(/.*)?'
246 restorecon -R -v /srv/myopenvswitch_content
247 Note: SELinux often uses regular expressions to specify labels that
249 match multiple files.
250 The following file types are defined for openvswitch:
252 openvswitch_exec_t
256 - Set files with the openvswitch_exec_t type, if you want to transition
258 an executable to the openvswitch_t domain.
259 Paths:
262 /usr/bin/ovs-vsctl, /usr/sbin/ovsdb-ctl, /usr/bin/ovs-appctl,
263 /usr/sbin/ovsdb-server, /usr/sbin/ovs-vswitchd, /usr/share/open‐
264 vswitch/scripts/ovs-ctl
265 openvswitch_log_t
268 - Set files with the openvswitch_log_t type, if you want to treat the
270 data as openvswitch log data, usually stored under the /var/log direc‐
271 tory.
272 openvswitch_rw_t
276 - Set files with the openvswitch_rw_t type, if you want to treat the
278 files as openvswitch read/write content.
279 openvswitch_tmp_t
283 - Set files with the openvswitch_tmp_t type, if you want to store open‐
285 vswitch temporary files in the /tmp directories.
286 openvswitch_var_lib_t
290 - Set files with the openvswitch_var_lib_t type, if you want to store
292 the openvswitch files under the /var/lib directory.
293 openvswitch_var_run_t
297 - Set files with the openvswitch_var_run_t type, if you want to store
299 the openvswitch files under the /run or /var/run directory.
300 Note: File context can be temporarily modified with the chcon command.
304 If you want to permanently change the file context you need to use the
305 semanage fcontext command. This will modify the SELinux labeling data‐
306 base. You will need to use restorecon to apply the labels.
307
310 semanage fcontext can also be used to manipulate default file context
311 mappings.
312 semanage permissive can also be used to manipulate whether or not a
314 process type is permissive.
315 semanage module can also be used to enable/disable/install/remove pol‐
317 icy modules.
318 semanage boolean can also be used to manipulate the booleans
320 system-config-selinux is a GUI tool available to customize SELinux pol‐
323 icy settings.
324
327 This manual page was auto-generated using sepolicy manpage .
328
331 selinux(8), openvswitch(8), semanage(8), restorecon(8), chcon(1) , set‐
332 sebool(8)
333openvswitch 15-06-03 openvswitch_selinux(8)