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SE Android policy.
2012-01-04 18:33:27 +01:00
# phone subsystem
Create attribute for moving perms out of domain Motivation: Domain is overly permissive. Start removing permissions from domain and assign them to the domain_deprecated attribute. Domain_deprecated and domain can initially be assigned to all domains. The goal is to not assign domain_deprecated to new domains and to start removing domain_deprecated where it is not required or reassigning the appropriate permissions to the inheriting domain when necessary. Bug: 25433265 Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c
2015-11-03 18:54:39 +01:00
type radio, domain, domain_deprecated, mlstrustedsubject;
SE Android policy.
2012-01-04 18:33:27 +01:00
app_domain(radio)
net_domain(radio)
bluetooth_domain(radio)
Address bug report denials. Triggering a bug report via Settings > Developer Options > Take bug report generates a number of denials. Two bugs here: 1) According to the "allowed" list in frameworks/native/cmds/servicemanager/service_manager.c , media apps, nfc, radio, and apps with system/root UIDs can register as a binder service. However, they were not placed into the binder_service domain. Fix them. 2) The bugreport mechanism queries all the services and java programs and asks them to write to a shell owned file. Grant the corresponding SELinux capability. Addresses the following denials: <5>[ 149.342181] type=1400 audit(1389419775.872:17): avc: denied { write } for pid=4023 comm="dumpsys" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:keystore:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 149.371844] type=1400 audit(1389419775.902:18): avc: denied { write } for pid=4023 comm="dumpsys" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:healthd:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 149.980161] type=1400 audit(1389419776.512:22): avc: denied { write } for pid=4023 comm="dumpsys" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:drmserver:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 150.095066] type=1400 audit(1389419776.622:23): avc: denied { write } for pid=1514 comm="Binder_C" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:system_app:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 150.096748] type=1400 audit(1389419776.632:24): avc: denied { getattr } for pid=3178 comm="Binder_3" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:system_app:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 150.097090] type=1400 audit(1389419776.632:25): avc: denied { write } for pid=1514 comm="Binder_C" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 154.545583] type=1400 audit(1389419781.072:43): avc: denied { write } for pid=1423 comm="Binder_A" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:media_app:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 156.000877] type=1400 audit(1389419782.532:44): avc: denied { write } for pid=1423 comm="Binder_A" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:radio:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 156.022567] type=1400 audit(1389419782.552:45): avc: denied { write } for pid=1423 comm="Binder_A" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:radio:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 156.043463] type=1400 audit(1389419782.572:46): avc: denied { write } for pid=1423 comm="Binder_A" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:nfc:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file <5>[ 156.062550] type=1400 audit(1389419782.592:47): avc: denied { write } for pid=1423 comm="Binder_A" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-10-21-55-46.txt.tmp" dev="mmcblk0p28" ino=82094 scontext=u:r:radio:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file Change-Id: I365d530c38ce176617e48b620c05c4aae01324d3
2014-01-11 08:05:25 +01:00
binder_service(radio)
SE Android policy.
2012-01-04 18:33:27 +01:00
Confine all app domains, but make them permissive for now. As has already been done for untrusted_app, isolated_app, and bluetooth, make all the other domains used for app processes confined while making them permissive until sufficient testing has been done. Change-Id: If55fe7af196636c49d10fc18be2f44669e2626c5 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2013-10-23 19:12:55 +02:00
# Talks to rild via the rild socket.
unix_socket_connect(radio, rild, rild)
# Data file accesses.
allow radio radio_data_file:dir create_dir_perms;
allow radio radio_data_file:notdevfile_class_set create_file_perms;
allow radio alarm_device:chr_file rw_file_perms;
Allow radio access to netd_pid file. They need to see when it changes so they know when netd bounces. (cherrypicked from commit 71e9a7c4718f786c9d1bc5e6ab62d3f7d46dce66) bug:18069270 Change-Id: I954cf43ff02f1d352015f128ef88b659e6d0f95a
2014-11-03 23:51:34 +01:00
allow radio net_data_file:dir search;
allow radio net_data_file:file r_file_perms;
Confine all app domains, but make them permissive for now. As has already been done for untrusted_app, isolated_app, and bluetooth, make all the other domains used for app processes confined while making them permissive until sufficient testing has been done. Change-Id: If55fe7af196636c49d10fc18be2f44669e2626c5 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2013-10-23 19:12:55 +02:00
# Property service
Replace unix_socket_connect() and explicit property sets with macro A common source of mistakes when authoring sepolicy is properly setting up property sets. This is a 3 part step of: 1. Allowing the unix domain connection to the init/property service 2. Allowing write on the property_socket file 3. Allowing the set on class property_service The macro unix_socket_connect() handled 1 and 2, but could be confusing for first time policy authors. 3 had to be explicitly added. To correct this, we introduce a new macros: set_prop(sourcedomain, targetprop) This macro handles steps 1, 2 and 3. No difference in sediff is expected. Change-Id: I630ba0178439c935d08062892990d43a3cc1239e Signed-off-by: William Roberts <william.c.roberts@linux.intel.com>
2015-05-05 03:22:45 +02:00
set_prop(radio, radio_prop)
set_prop(radio, system_radio_prop)
set_prop(radio, net_radio_prop)
Align SELinux property policy with init property_perms. Introduce a net_radio_prop type for net. properties that can be set by radio or system. Introduce a system_radio_prop type for sys. properties that can be set by radio or system. Introduce a dhcp_prop type for properties that can be set by dhcp or system. Drop the rild_prop vs radio_prop distinction; this was an early experiment to see if we could separate properties settable by rild versus other radio UID processes but it did not pan out. Remove the ability to set properties from unconfineddomain. Allow init to set any property. Allow recovery to set ctl_default_prop to restart adbd. Change-Id: I5ccafcb31ec4004dfefcec8718907f6b6f3e0dfd Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2014-06-19 16:27:02 +02:00
auditallow radio net_radio_prop:property_service set;
auditallow radio system_radio_prop:property_service set;
Confine all app domains, but make them permissive for now. As has already been done for untrusted_app, isolated_app, and bluetooth, make all the other domains used for app processes confined while making them permissive until sufficient testing has been done. Change-Id: If55fe7af196636c49d10fc18be2f44669e2626c5 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2013-10-23 19:12:55 +02:00
# ctl interface
Replace unix_socket_connect() and explicit property sets with macro A common source of mistakes when authoring sepolicy is properly setting up property sets. This is a 3 part step of: 1. Allowing the unix domain connection to the init/property service 2. Allowing write on the property_socket file 3. Allowing the set on class property_service The macro unix_socket_connect() handled 1 and 2, but could be confusing for first time policy authors. 3 had to be explicitly added. To correct this, we introduce a new macros: set_prop(sourcedomain, targetprop) This macro handles steps 1, 2 and 3. No difference in sediff is expected. Change-Id: I630ba0178439c935d08062892990d43a3cc1239e Signed-off-by: William Roberts <william.c.roberts@linux.intel.com>
2015-05-05 03:22:45 +02:00
set_prop(radio, ctl_rildaemon_prop)
Add SELinux rules for service_manager. Add a service_mananger class with the verb add. Add a type that groups the services for each of the processes that is allowed to start services in service.te and an attribute for all services controlled by the service manager. Add the service_contexts file which maps service name to target label. Bug: 12909011 Change-Id: I017032a50bc90c57b536e80b972118016d340c7d
2014-06-06 00:52:02 +02:00
Allow radio access to drmserver_service. Address the following denial: SELinux E avc: denied { find } for service=drm.drmManager scontext=u:r:radio:s0 tcontext=u:object_r:drmserver_service:s0 which occurs when a non-default SMS app sends an MMS. The message would be stored into system automatically in MMS service (from phone process and phone UID). The storing of the message involves the creation of android.drm.DrmManagerClient instance. Change-Id: Ic4e493f183c9ce7f7ac3f74f6ea062893ea67608
2015-01-31 02:17:04 +01:00
allow radio drmserver_service:service_manager find;
Restrict service_manager find and list access. All domains are currently granted list and find service_manager permissions, but this is not necessary. Pare the permissions which did not trigger any of the auditallow reporting. Bug: 18106000 Change-Id: Ie0ce8de2af8af2cbe4ce388a2dcf4534694c994a
2014-12-12 01:01:27 +01:00
allow radio mediaserver_service:service_manager find;
allow radio radio_service:service_manager { add find };
allow radio surfaceflinger_service:service_manager find;
Add system_api_service and app_api_service attributes. System services differ in designed access level. Add attributes reflecting this distinction and label services appropriately. Begin moving access to the newly labeled services by removing them from tmp_system_server_service into the newly made system_server_service attribute. Reflect the move of system_server_service from a type to an attribute by removing access to system_server_service where appropriate. Change-Id: I7fd06823328daaea6d6f96e4d6bd00332382230b
2015-04-03 01:50:08 +02:00
allow radio app_api_service:service_manager find;
allow radio system_api_service:service_manager find;
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