devicekit_selinux(8)

1devicekit_selinux(8)       SELinux Policy devicekit       devicekit_selinux(8)
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NAME

6       devicekit_selinux  -  Security  Enhanced Linux Policy for the devicekit
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the devicekit  processes  via  flexible
11       mandatory access control.
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13       The  devicekit processes execute with the devicekit_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep devicekit_t
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ENTRYPOINTS

24       The  devicekit_t  SELinux  type can be entered via the devicekit_exec_t
25       file type.
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27       The default entrypoint paths for the devicekit_t domain are the follow‐
28       ing:
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30       /usr/bin/udisksctl, /usr/libexec/devkit-daemon
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       devicekit  policy  is  very  flexible allowing users to setup their de‐
40       vicekit processes in as secure a method as possible.
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42       The following process types are defined for devicekit:
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44       devicekit_t, devicekit_power_t, devicekit_disk_t
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46       Note: semanage permissive -a  devicekit_t  can  be  used  to  make  the
47       process  type  devicekit_t  permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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BOOLEANS

53       SELinux  policy  is  customizable  based on least access required.  de‐
54       vicekit policy is extremely flexible and has several booleans that  al‐
55       low  you  to  manipulate the policy and run devicekit with the tightest
56       access possible.
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60       If you want to dontaudit all  daemons  scheduling  requests  (setsched,
61       sys_nice),  you  must turn on the daemons_dontaudit_scheduling boolean.
62       Enabled by default.
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64       setsebool -P daemons_dontaudit_scheduling 1
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68       If you want to deny user domains applications to map a memory region as
69       both  executable  and  writable,  this  is dangerous and the executable
70       should be reported in bugzilla, you must turn on the deny_execmem bool‐
71       ean. Disabled by default.
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73       setsebool -P deny_execmem 1
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77       If  you  want  to control the ability to mmap a low area of the address
78       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
79       the mmap_low_allowed boolean. Disabled by default.
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81       setsebool -P mmap_low_allowed 1
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85       If  you want to disable kernel module loading, you must turn on the se‐
86       cure_mode_insmod boolean. Disabled by default.
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88       setsebool -P secure_mode_insmod 1
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92       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 selinuxuser_ex‐
96       echeap boolean. Disabled by default.
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98       setsebool -P selinuxuser_execheap 1
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102       If you want to allow unconfined executables to make  their  stack  exe‐
103       cutable.   This  should  never, ever be necessary. 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_exec‐
106       stack boolean. Enabled by default.
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108       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

113       The SELinux process type devicekit_t can manage files labeled with  the
114       following file types.  The paths listed are the default paths for these
115       file types.  Note the processes UID still need to have DAC permissions.
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117       file_type
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119            all files on the system
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FILE CONTEXTS

123       SELinux requires files to have an extended attribute to define the file
124       type.
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126       You can see the context of a file using the -Z option to ls
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128       Policy  governs  the  access  confined  processes  have to these files.
129       SELinux devicekit policy is very flexible allowing users to setup their
130       devicekit processes in as secure a method as possible.
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132       STANDARD FILE CONTEXT
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134       SELinux defines the file context types for the devicekit, if you wanted
135       to store files with these types in a different paths, you need to  exe‐
136       cute  the  semanage  command to specify alternate labeling and then use
137       restorecon to put the labels on disk.
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139       semanage fcontext -a -t devicekit_exec_t '/srv/devicekit/content(/.*)?'
140       restorecon -R -v /srv/mydevicekit_content
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142       Note: SELinux often uses regular expressions  to  specify  labels  that
143       match multiple files.
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145       The following file types are defined for devicekit:
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149       devicekit_disk_exec_t
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151       - Set files with the devicekit_disk_exec_t type, if you want to transi‐
152       tion an executable to the devicekit_disk_t domain.
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155       Paths:
156            /lib/udisks2/udisksd,    /lib/udev/udisks-part-id,    /usr/lib/ud‐
157            isks2/udisksd,  /usr/libexec/udisks-daemon,  /usr/lib/udev/udisks-
158            part-id, /usr/libexec/udisks2/udisksd, /usr/lib/udisks/udisks-dae‐
159            mon, /usr/libexec/devkit-disks-daemon
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162       devicekit_exec_t
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164       -  Set  files with the devicekit_exec_t type, if you want to transition
165       an executable to the devicekit_t domain.
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168       Paths:
169            /usr/bin/udisksctl, /usr/libexec/devkit-daemon
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172       devicekit_power_exec_t
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174       - Set files with the devicekit_power_exec_t type, if you want to  tran‐
175       sition an executable to the devicekit_power_t domain.
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178       Paths:
179            /usr/libexec/upowerd,   /usr/lib/upower/upowerd,  /usr/libexec/de‐
180            vkit-power-daemon
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183       devicekit_tmp_t
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185       - Set files with the devicekit_tmp_t type, if you  want  to  store  de‐
186       vicekit temporary files in the /tmp directories.
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190       devicekit_var_lib_t
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192       - Set files with the devicekit_var_lib_t type, if you want to store the
193       devicekit files under the /var/lib directory.
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196       Paths:
197            /var/lib/udisks.*, /var/lib/upower(/.*)?, /var/lib/DeviceKit-.*
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200       devicekit_var_log_t
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202       - Set files with the devicekit_var_log_t type, if you want to treat the
203       data  as  devicekit var log data, usually stored under the /var/log di‐
204       rectory.
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207       Paths:
208            /var/log/pm-suspend.log.*, /var/log/pm-powersave.log.*
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211       devicekit_var_run_t
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213       - Set files with the devicekit_var_run_t type, if you want to store the
214       devicekit files under the /run or /var/run directory.
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217       Paths:
218            /var/run/udisks.*,  /var/run/devkit(/.*)?,  /var/run/upower(/.*)?,
219            /var/run/pm-utils(/.*)?, /var/run/DeviceKit-disks(/.*)?
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222       Note: File context can be temporarily modified with the chcon  command.
223       If  you want to permanently change the file context you need to use the
224       semanage fcontext command.  This will modify the SELinux labeling data‐
225       base.  You will need to use restorecon to apply the labels.
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COMMANDS

229       semanage  fcontext  can also be used to manipulate default file context
230       mappings.
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232       semanage permissive can also be used to manipulate  whether  or  not  a
233       process type is permissive.
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235       semanage  module can also be used to enable/disable/install/remove pol‐
236       icy modules.
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238       semanage boolean can also be used to manipulate the booleans
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241       system-config-selinux is a GUI tool available to customize SELinux pol‐
242       icy settings.
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AUTHOR

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