These flags should be writeable to the shell for both root and non-root
users. They should be readable everywhere, as they're read in libc
during initialization (and there's nothing secret to hide). We just
don't want to allow apps to set these properties.
These properties are non-persistent, are for local developer debugging
only.
Bug: 135772972
Bug: 172365548
Test: `adb shell setprop memtag.123 0` in non-root shell succeeds.
Change-Id: If9ad7123829b0be27c29050f10081d2aecdef670
default_prop has been readable from coredomain and appdomain. It's too
broad, because default_prop is a context for properties which don't have
matching property_contexts entries.
From now on, only coredomain can read default_prop. It's still broad,
but at least random apps can't read default_prop anymore.
Bug: 170590987
Test: SELinux denial boot test for internal devices
Change-Id: Ieed7e60d7e4448705c70e4f1725b2290e4fbcb4a
tests/sepolicy_tests.py has been checking whether the property owner
attributes are mutually exclusive. This is because current policy
language can't express the following snippet:
neverallow domain {
system_property_type && vendor_property_type
}:file no_rw_file_perms;
neverallow domain {
system_property_type && vendor_property_type
}:property_service set;
This uses technical_debt.cil to workaround this.
Bug: 171437654
Test: Try to compile a type having both system_property_type and
vendor_property_type
Change-Id: Ic65f2d00aa0f2fb7f5d78331b0a26e733fcd128e
Restrict access to controlling snapuserd via ctl properties. Allow
update_engine to control snapuserd, and connect/write to its socket.
update_engine needs this access so it can create the appropriate dm-user
device (which sends queries to snapuserd), which is then used to build
the update snapshot.
This also fixes a bug where /dev/dm-user was not properly labelled. As a
result, snapuserd and update_engine have been granted r_dir_perms to
dm_user_device.
Bug: 168554689
Test: full ota with VABC enabled
Change-Id: I1f65ba9f16a83fe3e8ed41a594421939a256aec0
These are read by some apps, but don't have any corresponding property
contexts. This adds a new context as we're going to remove default_prop
access.
Bug: 173360450
Test: no sepolicy denials
Change-Id: I9be28d8e641eb6380d080150bee785a3cc304ef4
This tracing daemon interfaces with perf_events, and is used for
callstack sampling. Currently, we only handle userspace stacks. We
have the ability to collect kernel frame addresses (as unwound
by the kernel itself), but need /proc/kallsyms to symbolize them.
This patch mirrors what was done for traced_probes (ftrace event
kptr symbolization) in aosp/1455337 - the daemon can set a sysprop
that causes "init" to temporarily relax kptr_restrict, then the daemon
can open and read /proc/kallsyms. After the file is parsed, the
kptr_restrict value is restored.
To reiterate, this is confined to userdebug_or_eng due to the reasons
outlined in go/perfetto-kallsyms.
Bug: 173124818
Change-Id: I9077bbfe6fea3318f4c37947a5c455061ca43d8d
Any partitions should be able to write this property with build.prop.
This adds a new context for ro.product.property_source_order so it can
be set from any build.prop, e.g. vendor/build.prop, product/build.prop,
etc.
Bug: 172459064
Test: PRODUCT_VENDOR_PROPERTIES can set this property
Change-Id: Ibf85a4ad02d8454f621428b271e8e298067aa126
Commit 67c36884 changed the label of service.adb.tcp.port to allow
vendor init to set it, but accidentally prevented adbd from setting it,
which broke `adb tcpip`.
Bug: http://b/171280882
Test: `adb tcpip`
Change-Id: I154e2f43a4d3b72b27508ce02d66298673939738
Currently default_prop is readable by coredomain and appdomain. That's
too broad, and we are going to restrict the access so every property
should be added to property_contexts.
This adds some missing properties to property_contexts. Newly added
property contexts are:
- wrap.*: used by zygote to give arguments. It's assigned as
zygote_wrap_prop, and will be readable from coredomain.
- partition.{mount_name}.verified: used by dm-verity. It's assigned as
vertiy_status_prop, and will only be accessible from init.
- (ro.)?setupwizard.*: used by setup wizard. It's assigned as
setupwizard_prop, and will be readable from coredomain.
Other properties, such as ro.gfx.*, media.stagefright.*,
ro.storage_manager.* are also added to existing contexts.
Bug: 170590987
Test: boot crosshatch and see no denials
Change-Id: Ife9d69a62ee8bd7395a70cd104271898c8a72540
This CL allows the traced_probes service to temporarily
lower kptr_restrict and read /proc/kallsyms.
This is allowed only on userdebug/eng builds.
The lowering of kptr_restrict is done via an init
property because the kernel checks that the kptr_restrict
writer is CAP_SYS_ADMIN, regardless of the /proc file ACLs [1].
[1] 4cbffc461e/kernel/sysctl.c (L2254)
Bug: 136133013
Design doc: go/perfetto-kallsyms
Test: perfetto_integrationtests --gtest_filter=PerfettoTest.KernelAddressSymbolization in r.android.com/1454882
Change-Id: Ic06e7a9a74c0f3e42fa63f7f41decc385c9fea2c
Every property should have an appropriate owner attribute, which can be
one of: system_property_type, product_property_type, or
vendor_property_type. This will be enforced for devices launching with S
or later. Devices launching with R or eariler can relax this by setting
following under BoardConfig.mk:
BUILD_BROKEN_ENFORCE_SYSPROP_OWNER := true
Bug: 131162102
Test: system/sepolicy/tools/build_policies.sh
Change-Id: I7914ef1b7463c9ec00812b9720094531fd63f0c7
hardware/interfaces/dumpstate/1.1 refers to this property,
so it must be defined in system/sepolicy.
Bug: 163759751
Test: atest VtsHalDumpstateV1_1TargetTest
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I058100eacd05e32de56e0ff9de465625a2e71e9c
The context name exported3_radio_prop is ambiguous and does not reflect
the usage and role of the properties. This changes its name to
radio_control_prop.
Some downstream branches are still using exported3_radio_prop, so
get_prop(domain, radio_control_prop) is added to avoid regression. It's
just a workaround and to be removed soon, after all exported3_radio_prop
are cleaned up.
Bug: 162214733
Test: boot a device with a sim and see basic functions work
Change-Id: If5fe3be7c64b36435c4ad0dc9a8089077295d502
Merged-In: If5fe3be7c64b36435c4ad0dc9a8089077295d502
This cleans up remaining exported2_default_prop. Three properties are
changed.
- ro.arch
It becomes build_prop.
- hal.instrumentation.enable
It becomes hal_instrumentation_prop.
- ro.property_service.version
It becomes property_service_version_prop.
Bug: 155844385
Test: selinux denial test on Pixel devices
Change-Id: I7ee0bd8c522cc09ee82ef89e6a13bbbf65291291
This is to remove exported3_default_prop. Contexts of these properties
are changed.
- ro.boot.wificountrycode
This becomes wifi_config_prop
- ro.opengles.version
This becomes graphics_config_prop. Also it's read by various domains, so
graphics_config_prop is now readable from coredomain.
- persist.config.calibration_fac
This becomes camera_calibration_prop. It's only readable by appdomain.
Bug: 155844385
Test: no denials on Pixel devices
Test: connect wifi
Change-Id: If2b6c10fa124e29d1612a8f94ae18b223849e2a9
This removes bad context names "exported*_prop". Property contexts of
following properties are changed. All properties are settable only by
vendor-init.
- ro.config.per_app_memcg
This becomes lmkd_config_prop.
- ro.zygote
This becomes dalvik_config_prop.
- ro.oem_unlock_supported
This becomes oem_unlock_prop. It's readable by system_app which includes
Settings apps.
- ro.storage_manager.enabled
This becomes storagemanagr_config_prop. It's readable by coredomain.
Various domains in coredomain seem to read it.
- sendbug.preferred.domain
This bcomes sendbug_config_prop. It's readable by appdomain.
There are still 3 more exported3_default_prop, which are going to be
tracked individually.
Bug: 155844385
Test: selinux denial check on Pixel devices
Change-Id: I340c903ca7bda98a92d0f157c65f6833ed00df05
To remove bad context names "exported*_prop"
Bug: 155844385
Test: boot and see no denials
Change-Id: Icd30be64355699618735d4012461835eca8cd651
Merged-In: Icd30be64355699618735d4012461835eca8cd651
(cherry picked from commit 37c2d4d0c9)
(cherry picked from commit 3b66e9b9f8)
To remove bad context names "exported*_prop"
Bug: 155844385
Test: boot and see no denials
Change-Id: Icd30be64355699618735d4012461835eca8cd651
Merged-In: Icd30be64355699618735d4012461835eca8cd651
(cherry picked from commit 37c2d4d0c9)
keyguard.no_require_sim becomes keyguard_config_prop to remove
exported*_default_prop
Bug: 155844385
Test: boot and see no denials
Change-Id: Icffa88b650a1d35d8c1cd29f89daf0644a79ddd3
To remove bad context names exported[23]_default_prop
Bug: 155844385
Test: m selinux_policy
Change-Id: Ic4bbc8e45d810368a96f6985c2234798e73be82d
Merged-In: Ic4bbc8e45d810368a96f6985c2234798e73be82d
(cherry picked from commit 072b01438e)
A device must indicate whether GPU profiling is supported or not through
setting these two properties properly. CTS needs to read these two
properties in order to run corresponding compliance tests. Hence need to
update sepolicy for these two properties.
Bug: b/157832445
Test: Test on Pixel 4
Change-Id: I6f400ecbbd5e78b645bb620fa24747e9367c2ff3
Merged-In: I6f400ecbbd5e78b645bb620fa24747e9367c2ff3
A device must indicate whether GPU profiling is supported or not through
setting these two properties properly. CTS needs to read these two
properties in order to run corresponding compliance tests. Hence need to
update sepolicy for these two properties.
Bug: b/157832445
Test: Test on Pixel 4
Change-Id: I6f400ecbbd5e78b645bb620fa24747e9367c2ff3
vendor_init is allowed to write any properties except for system
internal and system restricted props for old devices. Relaxing telephony
props to avoid build breakage.
Bug: N/A
Test: m selinux_policy with not_compatible_property
Change-Id: I1346a87b774099c837c329b977fbd993202af65b
To remove bad context names, two contexts are added.
- telephony_config_prop
- telephony_status_prop
exported_radio_prop, exported2_radio_prop are removed. Cleaning up
exported3_radio_prop will be a follow-up task.
Exempt-From-Owner-Approval: cherry-pick
Bug: 152471138
Bug: 155844385
Test: boot and see no denials
Test: usim works on blueline
Change-Id: Iff9a4635c709f3ebe266cd811df3a1b4d3a242c2
Merged-In: Iff9a4635c709f3ebe266cd811df3a1b4d3a242c2
(cherry picked from commit 4d36eae8af)
To remove bad context names "exported*_prop". Other init.svc.*
properties explicitly become system internal prop.
Bug: 155844385
Test: boot and see no denials
Change-Id: I7a3b4103a4cea77035a6e831e3b6a49a45f15a35
