1devicekit_disk_selinux(8)SELinux Policy devicekit_diskdevicekit_disk_selinux(8)
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6 devicekit_disk_selinux - Security Enhanced Linux Policy for the
7 devicekit_disk processes
8
10 Security-Enhanced Linux secures the devicekit_disk processes via flexi‐
11 ble mandatory access control.
12 The devicekit_disk processes execute with the devicekit_disk_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep devicekit_disk_t
20
24 The devicekit_disk_t SELinux type can be entered via the
25 devicekit_disk_exec_t file type.
26 The default entrypoint paths for the devicekit_disk_t domain are the
28 following:
29 /lib/udisks2/udisksd, /lib/udev/udisks-part-id,
31 /usr/lib/udisks2/udisksd, /usr/libexec/udisks-daemon,
32 /usr/lib/udev/udisks-part-id, /usr/libexec/udisks2/udisksd,
33 /usr/lib/udisks/udisks-daemon, /usr/libexec/devkit-disks-daemon
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 devicekit_disk policy is very flexible allowing users to setup their
43 devicekit_disk processes in as secure a method as possible.
44 The following process types are defined for devicekit_disk:
46 devicekit_disk_t
48 Note: semanage permissive -a devicekit_disk_t can be used to make the
50 process type devicekit_disk_t permissive. SELinux does not deny access
51 to permissive process types, but the AVC (SELinux denials) messages are
52 still generated.
53
56 SELinux policy is customizable based on least access required.
57 devicekit_disk policy is extremely flexible and has several booleans
58 that allow you to manipulate the policy and run devicekit_disk with the
59 tightest access possible.
60 If you want to allow users to resolve user passwd entries directly from
64 ldap rather then using a sssd server, you must turn on the authlo‐
65 gin_nsswitch_use_ldap boolean. Disabled by default.
66 setsebool -P authlogin_nsswitch_use_ldap 1
68 If you want to allow all daemons to write corefiles to /, you must turn
72 on the daemons_dump_core boolean. Disabled by default.
73 setsebool -P daemons_dump_core 1
75 If you want to enable cluster mode for daemons, you must turn on the
79 daemons_enable_cluster_mode boolean. Enabled by default.
80 setsebool -P daemons_enable_cluster_mode 1
82 If you want to allow all daemons to use tcp wrappers, you must turn on
86 the daemons_use_tcp_wrapper boolean. Disabled by default.
87 setsebool -P daemons_use_tcp_wrapper 1
89 If you want to allow all daemons the ability to read/write terminals,
93 you must turn on the daemons_use_tty boolean. Disabled by default.
94 setsebool -P daemons_use_tty 1
96 If you want to deny user domains applications to map a memory region as
100 both executable and writable, this is dangerous and the executable
101 should be reported in bugzilla, you must turn on the deny_execmem bool‐
102 ean. Enabled by default.
103 setsebool -P deny_execmem 1
105 If you want to deny any process from ptracing or debugging any other
109 processes, you must turn on the deny_ptrace boolean. Enabled by
110 default.
111 setsebool -P deny_ptrace 1
113 If you want to allow any process to mmap any file on system with
117 attribute file_type, you must turn on the domain_can_mmap_files bool‐
118 ean. Enabled by default.
119 setsebool -P domain_can_mmap_files 1
121 If you want to allow all domains write to kmsg_device, while kernel is
125 executed with systemd.log_target=kmsg parameter, you must turn on the
126 domain_can_write_kmsg boolean. Disabled by default.
127 setsebool -P domain_can_write_kmsg 1
129 If you want to allow all domains to use other domains file descriptors,
133 you must turn on the domain_fd_use boolean. Enabled by default.
134 setsebool -P domain_fd_use 1
136 If you want to allow all domains to have the kernel load modules, you
140 must turn on the domain_kernel_load_modules boolean. Disabled by
141 default.
142 setsebool -P domain_kernel_load_modules 1
144 If you want to allow all domains to execute in fips_mode, you must turn
148 on the fips_mode boolean. Enabled by default.
149 setsebool -P fips_mode 1
151 If you want to enable reading of urandom for all domains, you must turn
155 on the global_ssp boolean. Disabled by default.
156 setsebool -P global_ssp 1
158 If you want to allow confined applications to run with kerberos, you
162 must turn on the kerberos_enabled boolean. Enabled by default.
163 setsebool -P kerberos_enabled 1
165 If you want to control the ability to mmap a low area of the address
169 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
170 the mmap_low_allowed boolean. Disabled by default.
171 setsebool -P mmap_low_allowed 1
173 If you want to allow system to run with NIS, you must turn on the
177 nis_enabled boolean. Disabled by default.
178 setsebool -P nis_enabled 1
180 If you want to allow confined applications to use nscd shared memory,
184 you must turn on the nscd_use_shm boolean. Disabled by default.
185 setsebool -P nscd_use_shm 1
187 If you want to disable kernel module loading, you must turn on the
191 secure_mode_insmod boolean. Enabled by default.
192 setsebool -P secure_mode_insmod 1
194 If you want to boolean to determine whether the system permits loading
198 policy, setting enforcing mode, and changing boolean values. Set this
199 to true and you have to reboot to set it back, you must turn on the
200 secure_mode_policyload boolean. Enabled by default.
201 setsebool -P secure_mode_policyload 1
203 If you want to allow unconfined executables to make their heap memory
207 executable. Doing this is a really bad idea. Probably indicates a
208 badly coded executable, but could indicate an attack. This executable
209 should be reported in bugzilla, you must turn on the selin‐
210 uxuser_execheap boolean. Disabled by default.
211 setsebool -P selinuxuser_execheap 1
213 If you want to allow all unconfined executables to use libraries
217 requiring text relocation that are not labeled textrel_shlib_t, you
218 must turn on the selinuxuser_execmod boolean. Enabled by default.
219 setsebool -P selinuxuser_execmod 1
221 If you want to allow unconfined executables to make their stack exe‐
225 cutable. This should never, ever be necessary. Probably indicates a
226 badly coded executable, but could indicate an attack. This executable
227 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
228 stack boolean. Enabled by default.
229 setsebool -P selinuxuser_execstack 1
231 If you want to support X userspace object manager, you must turn on the
235 xserver_object_manager boolean. Enabled by default.
236 setsebool -P xserver_object_manager 1
238
242 The SELinux process type devicekit_disk_t can manage files labeled with
243 the following file types. The paths listed are the default paths for
244 these file types. Note the processes UID still need to have DAC per‐
245 missions.
246 file_type
248 all files on the system
250
253 SELinux requires files to have an extended attribute to define the file
254 type.
255 You can see the context of a file using the -Z option to ls
257 Policy governs the access confined processes have to these files.
259 SELinux devicekit_disk policy is very flexible allowing users to setup
260 their devicekit_disk processes in as secure a method as possible.
261 The following file types are defined for devicekit_disk:
263 devicekit_disk_exec_t
267 - Set files with the devicekit_disk_exec_t type, if you want to transi‐
269 tion an executable to the devicekit_disk_t domain.
270 Paths:
273 /lib/udisks2/udisksd, /lib/udev/udisks-part-id,
274 /usr/lib/udisks2/udisksd, /usr/libexec/udisks-daemon,
275 /usr/lib/udev/udisks-part-id, /usr/libexec/udisks2/udisksd,
276 /usr/lib/udisks/udisks-daemon, /usr/libexec/devkit-disks-daemon
277 Note: File context can be temporarily modified with the chcon command.
280 If you want to permanently change the file context you need to use the
281 semanage fcontext command. This will modify the SELinux labeling data‐
282 base. You will need to use restorecon to apply the labels.
283
286 semanage fcontext can also be used to manipulate default file context
287 mappings.
288 semanage permissive can also be used to manipulate whether or not a
290 process type is permissive.
291 semanage module can also be used to enable/disable/install/remove pol‐
293 icy modules.
294 semanage boolean can also be used to manipulate the booleans
296 system-config-selinux is a GUI tool available to customize SELinux pol‐
299 icy settings.
300
303 This manual page was auto-generated using sepolicy manpage .
304
307 selinux(8), devicekit_disk(8), semanage(8), restorecon(8), chcon(1),
308 sepolicy(8) , setsebool(8)
309devicekit_disk 19-04-25 devicekit_disk_selinux(8)