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 de‐
7 vicekit_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 de‐
25 vicekit_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, /usr/lib/udisks2/ud‐
31 isksd, /usr/libexec/udisks-daemon, /usr/lib/udev/udisks-part-id,
32 /usr/libexec/udisks2/udisksd, /usr/lib/udisks/udisks-daemon,
33 /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. de‐
57 vicekit_disk policy is extremely flexible and has several booleans that
58 allow you to manipulate the policy and run devicekit_disk with the
59 tightest access possible.
60 If you want to dontaudit all daemons scheduling requests (setsched,
64 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
65 Enabled by default.
66 setsebool -P daemons_dontaudit_scheduling 1
68 If you want to deny user domains applications to map a memory region as
72 both executable and writable, this is dangerous and the executable
73 should be reported in bugzilla, you must turn on the deny_execmem bool‐
74 ean. Disabled by default.
75 setsebool -P deny_execmem 1
77 If you want to control the ability to mmap a low area of the address
81 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
82 the mmap_low_allowed boolean. Disabled by default.
83 setsebool -P mmap_low_allowed 1
85 If you want to allow system to run with NIS, you must turn on the
89 nis_enabled boolean. Disabled by default.
90 setsebool -P nis_enabled 1
92 If you want to disable kernel module loading, you must turn on the se‐
96 cure_mode_insmod boolean. Disabled by default.
97 setsebool -P secure_mode_insmod 1
99 If you want to allow unconfined executables to make their heap memory
103 executable. Doing this is a really bad idea. Probably indicates a
104 badly coded executable, but could indicate an attack. This executable
105 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
106 echeap boolean. Disabled by default.
107 setsebool -P selinuxuser_execheap 1
109 If you want to allow unconfined executables to make their stack exe‐
113 cutable. This should never, ever be necessary. Probably indicates a
114 badly coded executable, but could indicate an attack. This executable
115 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
116 stack boolean. Enabled by default.
117 setsebool -P selinuxuser_execstack 1
119
123 The SELinux process type devicekit_disk_t can manage files labeled with
124 the following file types. The paths listed are the default paths for
125 these file types. Note the processes UID still need to have DAC per‐
126 missions.
127 file_type
129 all files on the system
131
134 SELinux requires files to have an extended attribute to define the file
135 type.
136 You can see the context of a file using the -Z option to ls
138 Policy governs the access confined processes have to these files.
140 SELinux devicekit_disk policy is very flexible allowing users to setup
141 their devicekit_disk processes in as secure a method as possible.
142 STANDARD FILE CONTEXT
144 SELinux defines the file context types for the devicekit_disk, if you
146 wanted to store files with these types in a different paths, you need
147 to execute the semanage command to specify alternate labeling and then
148 use restorecon to put the labels on disk.
149 semanage fcontext -a -t devicekit_disk_exec_t '/srv/devicekit_disk/con‐
151 tent(/.*)?'
152 restorecon -R -v /srv/mydevicekit_disk_content
153 Note: SELinux often uses regular expressions to specify labels that
155 match multiple files.
156 The following file types are defined for devicekit_disk:
158 devicekit_disk_exec_t
162 - Set files with the devicekit_disk_exec_t type, if you want to transi‐
164 tion an executable to the devicekit_disk_t domain.
165 Paths:
168 /lib/udisks2/udisksd, /lib/udev/udisks-part-id, /usr/lib/ud‐
169 isks2/udisksd, /usr/libexec/udisks-daemon, /usr/lib/udev/udisks-
170 part-id, /usr/libexec/udisks2/udisksd, /usr/lib/udisks/udisks-dae‐
171 mon, /usr/libexec/devkit-disks-daemon
172 Note: File context can be temporarily modified with the chcon command.
175 If you want to permanently change the file context you need to use the
176 semanage fcontext command. This will modify the SELinux labeling data‐
177 base. You will need to use restorecon to apply the labels.
178
181 semanage fcontext can also be used to manipulate default file context
182 mappings.
183 semanage permissive can also be used to manipulate whether or not a
185 process type is permissive.
186 semanage module can also be used to enable/disable/install/remove pol‐
188 icy modules.
189 semanage boolean can also be used to manipulate the booleans
191 system-config-selinux is a GUI tool available to customize SELinux pol‐
194 icy settings.
195
198 This manual page was auto-generated using sepolicy manpage .
199
202 selinux(8), devicekit_disk(8), semanage(8), restorecon(8), chcon(1),
203 sepolicy(8), setsebool(8)
204devicekit_disk 23-10-20 devicekit_disk_selinux(8)