PWN-Hunter/android_system_sepolicy
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android_system_sepolicy/property.te

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Add policy for property service. New property_contexts file for property selabel backend. New property.te file with property type declarations. New property_service security class and set permission. Allow rules for setting properties.
2012-04-04 07:11:16 -07:00
type default_prop, property_type;
type shell_prop, property_type;
Give system_server / system_app ability to write some properties Allow writing to persist.sys and debug. This addresses the following denials (which are actually being enforced): <4>[ 131.700473] avc: denied { set } for property=debug.force_rtl scontext=u:r:system_server:s0 tcontext=u:object_r:shell_prop:s0 tclass=property_service <3>[ 131.700625] init: sys_prop: permission denied uid:1000 name:debug.force_rtl <4>[ 132.630062] avc: denied { set } for property=persist.sys.dalvik.vm.lib scontext=u:r:system_app:s0 tcontext=u:object_r:system_prop:s0 tclass=property_service <3>[ 132.630184] init: sys_prop: permission denied uid:1000 name:persist.sys.dalvik.vm.lib Change-Id: I5d114c0d963bf393f49f1bf13d1ed84137fbcca6
2013-11-01 10:45:03 -07:00
type debug_prop, property_type;
debuggerd: Allow "debug.db.uid" usage Allow the use of debug.db.uid on userdebug / eng builds. Setting this property allows debuggerd to suspend a process if it detects a crash. Make debug.db.uid only accessible to the su domain. This should not be used on a user build. Only support reading user input on userdebug / eng builds. Steps to reproduce with the "crasher" program: adb root adb shell setprop debug.db.uid 20000 mmm system/core/debuggerd adb sync adb shell crasher Addresses the following denials: <5>[ 580.637442] type=1400 audit(1392412124.612:149): avc: denied { read } for pid=182 comm="debuggerd" name="input" dev="tmpfs" ino=5665 scontext=u:r:debuggerd:s0 tcontext=u:object_r:input_device:s0 tclass=dir <5>[ 580.637589] type=1400 audit(1392412124.612:150): avc: denied { open } for pid=182 comm="debuggerd" name="input" dev="tmpfs" ino=5665 scontext=u:r:debuggerd:s0 tcontext=u:object_r:input_device:s0 tclass=dir <5>[ 580.637706] type=1400 audit(1392412124.612:151): avc: denied { read write } for pid=182 comm="debuggerd" name="event5" dev="tmpfs" ino=6723 scontext=u:r:debuggerd:s0 tcontext=u:object_r:input_device:s0 tclass=chr_file <5>[ 580.637823] type=1400 audit(1392412124.612:152): avc: denied { open } for pid=182 comm="debuggerd" name="event5" dev="tmpfs" ino=6723 scontext=u:r:debuggerd:s0 tcontext=u:object_r:input_device:s0 tclass=chr_file <5>[ 580.637958] type=1400 audit(1392412124.612:153): avc: denied { ioctl } for pid=182 comm="debuggerd" path="/dev/input/event5" dev="tmpfs" ino=6723 scontext=u:r:debuggerd:s0 tcontext=u:object_r:input_device:s0 tclass=chr_file Bug: 12532622 Change-Id: I63486edb73efb1ca12e9eb1994ac9e389251a3f1
2014-02-05 16:36:25 -08:00
type debuggerd_prop, property_type;
Add policy for property service. New property_contexts file for property selabel backend. New property.te file with property type declarations. New property_service security class and set permission. Allow rules for setting properties.
2012-04-04 07:11:16 -07:00
type radio_prop, property_type;
type system_prop, property_type;
type vold_prop, property_type;
type rild_prop, property_type;
Replace ctl_default_prop access with explicit service property keys. The ctl_default_prop label is a bit too generic for some of the priveleged domains when describing access rights. Instead, be explicit about which services are being started and stopped by introducing new ctl property keys. Change-Id: I1d0c6f6b3e8bd63da30bd6c7b084da44f063246a Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
2014-02-18 10:24:26 -08:00
type ctl_bootanim_prop, property_type;
Add policy for property service. New property_contexts file for property selabel backend. New property.te file with property type declarations. New property_service security class and set permission. Allow rules for setting properties.
2012-04-04 07:11:16 -07:00
type ctl_default_prop, property_type;
type ctl_dumpstate_prop, property_type;
Replace ctl_default_prop access with explicit service property keys. The ctl_default_prop label is a bit too generic for some of the priveleged domains when describing access rights. Instead, be explicit about which services are being started and stopped by introducing new ctl property keys. Change-Id: I1d0c6f6b3e8bd63da30bd6c7b084da44f063246a Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
2014-02-18 10:24:26 -08:00
type ctl_fuse_prop, property_type;
type ctl_mdnsd_prop, property_type;
Add policy for property service. New property_contexts file for property selabel backend. New property.te file with property type declarations. New property_service security class and set permission. Allow rules for setting properties.
2012-04-04 07:11:16 -07:00
type ctl_rildaemon_prop, property_type;
Allow system_app to start bugreport and to create /data/anr/traces.txt. Resolves denials such as: avc: denied { set } for property =ctl.bugreport scontext=u:r:system_app:s0 tcontext=u:object_r:ctl_default_prop:s0 tclass=property_service avc: denied { write } for pid=4415 comm=5369676E616C2043617463686572 name="anr" dev="dm-0" ino=358337 scontext=u:r:system_app:s0 tcontext=u:object_r:anr_data_file:s0 tclass=dir avc: denied { add_name } for pid=4415 comm=5369676E616C2043617463686572 name="traces.txt" scontext=u:r:system_app:s0 tcontext=u:object_r:anr_data_file:s0 tclass=dir avc: denied { create } for pid=4415 comm=5369676E616C2043617463686572 name="traces.txt" scontext=u:r:system_app:s0 tcontext=u:object_r:anr_data_file:s0 tclass=file Change-Id: I71d0ede049136d72f28bdc85d52fcefa2f7d128f Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2014-03-06 11:47:22 -08:00
type ctl_bugreport_prop, property_type;
Label persist audio properties label all persist.audio.* properties and allow mediaserver access to them. Change-Id: If5755d9783dce298e66a25bcb7f17ff17bd83ea7
2012-11-27 17:34:54 -08:00
type audio_prop, property_type;
Move policy files Update the file_contexts for the new location of the policy files, as well as update the policy for the management of these types. Change-Id: Idc475901ed437efb325807897e620904f4ff03e9
2013-01-23 14:02:43 -08:00
type security_prop, property_type;
SELinux policy for Bluetooth properties. Properties under bluetooth. and persist.service.bdroid. are considered Bluetooth-related properties. Change-Id: Iee937d9a1184c2494deec46f9ed7090c643acda7
2013-05-06 10:18:27 -07:00
type bluetooth_prop, property_type;
Enable SELinux on vold This change enables SELinux security enforcement on vold. For the vold.te file ONLY, this change is conceptually a revert of 77d4731e9d30c8971e076e2469d6957619019921 and 50e37b93ac97631dcac6961285b92af5026557af, with the following additional changes: 1) Removal of "allow vold proc:file write;" and "allow vold self:capability { sys_boot };". As of system/vold change adfba3626e76c1931649634275d241b226cd1b9a, vold no longer performs it's own reboots, so these capabilities are no longer needed. 2) Addition of the powerctl property, which vold contacts to tell init to reboot. 3) Removal of "allow vold kernel:system module_request;". As of CTS commit f2cfdf5c057140d9442fcfeb4e4a648e8258b659, Android devices no longer ship with loadable modules, hence we don't require this rule. 4) Removal of "fsetid" from "self:capability". Any setuid / setgid bits SHOULD be cleared if vold is able to change the permissions of files. IMHO, it was a mistake to ever include this capability in the first place. Testing: As much as possible, I've tested filesystem related functionality, including factory reset and device encryption. I wasn't able to test fstrim functionality, which is a fairly new feature. I didn't see any policy denials in dmesg. It's quite possible I've missed something. If we experience problems, I happy to roll back this change. Bug: 9629920 Change-Id: I683afa0dffe9f28952287bfdb7ee4e0423c2e97a
2013-06-28 20:15:37 -07:00
type powerctl_prop, property_type;
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