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.
12
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 deny user domains applications to map a memory region as
61       both  executable  and  writable,  this  is dangerous and the executable
62       should be reported in bugzilla, you must turn on the deny_execmem bool‐
63       ean. Enabled by default.
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65       setsebool -P deny_execmem 1
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69       If  you  want  to control the ability to mmap a low area of the address
70       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
71       the mmap_low_allowed boolean. Disabled by default.
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73       setsebool -P mmap_low_allowed 1
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77       If  you want to disable kernel module loading, you must turn on the se‐
78       cure_mode_insmod boolean. Enabled by default.
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80       setsebool -P secure_mode_insmod 1
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83
84       If you want to allow unconfined executables to make their  heap  memory
85       executable.   Doing  this  is  a  really bad idea. Probably indicates a
86       badly coded executable, but could indicate an attack.  This  executable
87       should  be  reported  in bugzilla, you must turn on the selinuxuser_ex‐
88       echeap boolean. Disabled by default.
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90       setsebool -P selinuxuser_execheap 1
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94       If you want to allow unconfined executables to make  their  stack  exe‐
95       cutable.   This  should  never, ever be necessary. Probably indicates a
96       badly coded executable, but could indicate an attack.  This  executable
97       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
98       stack boolean. Enabled by default.
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100       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

105       The SELinux process type devicekit_t can manage files labeled with  the
106       following file types.  The paths listed are the default paths for these
107       file types.  Note the processes UID still need to have DAC permissions.
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109       file_type
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111            all files on the system
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FILE CONTEXTS

115       SELinux requires files to have an extended attribute to define the file
116       type.
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118       You can see the context of a file using the -Z option to ls
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120       Policy  governs  the  access  confined  processes  have to these files.
121       SELinux devicekit policy is very flexible allowing users to setup their
122       devicekit processes in as secure a method as possible.
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124       STANDARD FILE CONTEXT
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126       SELinux defines the file context types for the devicekit, if you wanted
127       to store files with these types in a diffent paths, you need to execute
128       the  semanage  command  to  specify alternate labeling and then use re‐
129       storecon to put the labels on disk.
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131       semanage  fcontext  -a  -t  devicekit_var_log_t  '/srv/mydevicekit_con‐
132       tent(/.*)?'
133       restorecon -R -v /srv/mydevicekit_content
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135       Note:  SELinux  often  uses  regular expressions to specify labels that
136       match multiple files.
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138       The following file types are defined for devicekit:
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142       devicekit_disk_exec_t
143
144       - Set files with the devicekit_disk_exec_t type, if you want to transi‐
145       tion an executable to the devicekit_disk_t domain.
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148       Paths:
149            /lib/udisks2/udisksd,    /lib/udev/udisks-part-id,    /usr/lib/ud‐
150            isks2/udisksd,  /usr/libexec/udisks-daemon,  /usr/lib/udev/udisks-
151            part-id, /usr/libexec/udisks2/udisksd, /usr/lib/udisks/udisks-dae‐
152            mon, /usr/libexec/devkit-disks-daemon
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155       devicekit_exec_t
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157       - Set files with the devicekit_exec_t type, if you want  to  transition
158       an executable to the devicekit_t domain.
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161       Paths:
162            /usr/bin/udisksctl, /usr/libexec/devkit-daemon
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165       devicekit_power_exec_t
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167       -  Set files with the devicekit_power_exec_t type, if you want to tran‐
168       sition an executable to the devicekit_power_t domain.
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171       Paths:
172            /usr/libexec/upowerd,  /usr/lib/upower/upowerd,   /usr/libexec/de‐
173            vkit-power-daemon
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176       devicekit_tmp_t
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178       -  Set  files  with  the devicekit_tmp_t type, if you want to store de‐
179       vicekit temporary files in the /tmp directories.
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183       devicekit_var_lib_t
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185       - Set files with the devicekit_var_lib_t type, if you want to store the
186       devicekit files under the /var/lib directory.
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189       Paths:
190            /var/lib/udisks.*, /var/lib/upower(/.*)?, /var/lib/DeviceKit-.*
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193       devicekit_var_log_t
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195       - Set files with the devicekit_var_log_t type, if you want to treat the
196       data as devicekit var log data, usually stored under the  /var/log  di‐
197       rectory.
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200       Paths:
201            /var/log/pm-suspend.log.*, /var/log/pm-powersave.log.*
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204       devicekit_var_run_t
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206       - Set files with the devicekit_var_run_t type, if you want to store the
207       devicekit files under the /run or /var/run directory.
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210       Paths:
211            /var/run/udisks.*,  /var/run/devkit(/.*)?,  /var/run/upower(/.*)?,
212            /var/run/pm-utils(/.*)?, /var/run/DeviceKit-disks(/.*)?
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214
215       Note:  File context can be temporarily modified with the chcon command.
216       If you want to permanently change the file context you need to use  the
217       semanage fcontext command.  This will modify the SELinux labeling data‐
218       base.  You will need to use restorecon to apply the labels.
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COMMANDS

222       semanage fcontext can also be used to manipulate default  file  context
223       mappings.
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225       semanage  permissive  can  also  be used to manipulate whether or not a
226       process type is permissive.
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228       semanage module can also be used to enable/disable/install/remove  pol‐
229       icy modules.
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231       semanage boolean can also be used to manipulate the booleans
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234       system-config-selinux is a GUI tool available to customize SELinux pol‐
235       icy settings.
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AUTHOR

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