The application zygote is a new sort of zygote process that is a
child of the regular zygote. Each application zygote is tied to the
application for which it's launched. Once it's started, it will
pre-load some of the code for that specific application, much like
the regular zygote does for framework code.
Once the application zygote is up and running, it can spawn
isolated service processes that run in the isolated_app domain. These
services can then benefit from already having the relevant
application code and data pre-loaded.
The policy is largely the same as the webview_zygote domain,
however there are a few crucial points where the policy is different.
1) The app_zygote runs under the UID of the application that spawned
it.
2) During app_zygote launch, it will call a callback that is
controlled by the application, that allows the application to
pre-load code and data that it thinks is relevant.
Especially point 2 is imporant: it means that untrusted code can run
in the app_zygote context. This context is severely limited, and the
main concern is around the setgid/setuid capabilities. Those conerns
are mitigated by installing a seccomp filter that only allows
setgid/setuid to be called in a safe range.
Bug: 111434506
Test: app_zygote can start and fork children without denials.
Change-Id: I1cc49ee0042d41e5ac6eb81d8f8a10ba448d4832
The testharness service will manage Test Harness Mode and provide a
command-line interface for users to enable Test Harness Mode; however it
does not directly provide a public API.
Bug: 80137798
Test: make
Test: flash crosshatch
Change-Id: Ie396e40fcea8914b4dd2247f2314e029b66ad84e
For experiment flag testing, we add a flag netd and have
SEPolicy updates.
Test: add sepolicy, m -j, check GetServerConfigurableFlag function in netd
Bug:122050512
Change-Id: I21c844c277afc358085d80447f16e4c0d4eba5b3
This was a regression in Q, and the file is an implementation of
liblog.
Bug: 113083310
Test: use tags from vendor and see no denials
Change-Id: I726cc1fcfad39afc197b21e431a687a3e4c8ee4a
This cherry-pick exists to update stage-aosp-master sepolicy
files to look like the ones in master and aosp. It looks like
it was an overlook this patch was merged with DO NOT MERGE
instead of only Merged-In.
Bug: 111276913
Test: manual verification
Merged-In: If76dc7bfdad87789a58fc94e0fd280deae1a41ab
Change-Id: If76dc7bfdad87789a58fc94e0fd280deae1a41ab
(cherry picked from commit 73e7fa884b)
Add the required permissions for the InputClassifier HAL.
Bug: 62940136
Test: no selinux denials in logcat when HAL is used inside input flinger.
Change-Id: Ibc9b115a83719421d56ecb4bca2fd196ec71fd76
runas_app domain is used by lldb/ndk-gdb/simpleperf to debug/profile
debuggable apps. But it misses permissions to ptrace app processes and
read /proc/<app_pid> directory.
Bug: none
Test: build and boot marlin.
Test: run lldb and simpleperf on apps with target sdk version 24-29.
Change-Id: I9e6f940ec81a8285eae8db3b77fb1251a25dedd0
Test: basic workflow between apexd and PackageManager tested with
changes being developed.
Bug: 118865310
Change-Id: I1ae866f33e9b22493585e108c4fd45400493c7ac
Notes:
- Added face hal domain, context and file types for the default
SELinux policy.
- Please see aosp/q/topic:"Face+Authentication"
Bug: 80155388
Test: Built successfully.
Change-Id: I2e02cf6df009c5ca476dfd842b493c6b76b7712a
This reverts commit 9eb3b8ffdf.
Reason for revert: We are deciding for now not to make StagingManager a fully-fledged binder service, as it will only be accessed by PackageInstaller. We might re-evaluate this decision later if needed.
Bug: 122072686
Change-Id: Ic2a53fc92ddd7d7eeccc6a4a0117f28724346ec7
Adding a new high-level service which will handle staged installs, i.e.
installs that require a reboot.
Bug: 118865310
Test: An initial implementation of StagingManager can be reached
successfully by PackageManagerService and PackageInstallerService.
Change-Id: I8859b463575f8ee85caae43570958347b82f967e
Add "rs" and "rs_exec" types to public policy. Access
to these types might be needed for device specific
customization.
Bug: 121306110
Test: Manual using application
Change-Id: Ief35d3353625adfbf468447de74aa80651dd9451
The policies allow the system server to register a network_stack_service
used to communicate with the network stack process.
Test: atest FrameworksNetTests
Bug: b/112869080
Change-Id: Ib9b7d9150fe4afcce03c8b3dbb36b81c67e39366
The networking stack app hosts services that used to be in the system
server (IpClient, NetworkMonitor for now), but in a different process to
be packaged as a mainline module.
Test: booted, verified networking stack working when in app
Change-Id: I300a556f51b35c17378af961cea1ec937444e597
To configure read-ahead on loop devices, eg.
/sys/devices/virtual/block/loop0/queue/read_ahead_kb
Bug: 120776455
Test: configuring read-ahead on loop devices works from apexd
Change-Id: Ib25372358e8ca62fa634daf286e4b64e635fac58
Cherry-picked from aosp/852612 (commit Ic0b3f85fad24ccedc0a8e9935c198bc8503bb415),
and is a manual merge for ag/5836696 (commit I360ce12f33e333766f6f30614c87811d05e663a4)
Bug: 120865921
Test: Manual verification
Change-Id: Ic0b3f85fad24ccedc0a8e9935c198bc8503bb415
Bug: None
Test: I solemnly swear I tested this conflict resolution.
Change-Id: I360ce12f33e333766f6f30614c87811d05e663a4
Merged-In: Ic0b3f85fad24ccedc0a8e9935c198bc8503bb415
We're creating a new PermissionManagerService that will handle
all of the permission related APIs. These are currently being
routed through PackageManagerService.
Test: Device boots
Change-Id: I7d08561dd33b692209c30d413cdca0ff567358f1
rss_hwm_reset is binary that reset RSS high-water mark counters for all
currently running processes. It runs in a separate process because it
needs dac_override capability.
Bug: 119603799
Test: no errors in logcat
Change-Id: I6221a5eca3427bf532830575d8fba98eb3e65c29
This is analoguous to what Perfetto does with persist.traced.enable.
Test: m
Test: flash walleye
Test: setprop persist.heapprofd.enable 1
setprop persist.heapprofd.enable 0
Change-Id: I997272ef8c6fe078aca2388ed0cf2ecc3de612a5
- Update policy for new system service, used for SystemUI/Apps to
present predicted apps in their UI.
Bug: 111701043
Test: manual verification
Change-Id: Ia3b5db987097d2d71bf774ca550041e03214471d
Also giving statsd permission to access it. This change copies the internal sepolicy to AOSP.
Bug: 111185513
Bug: 120551881
Test: make
Change-Id: I7e0386777e05580299caf9b97cb7804459f1a9d0
Add a DeviceConfig service in system_server to edit configuration flags.
This is intended to be a command line tool for local overrides and/or
tool for tests that adopt shell permissions.
Test: None
Bug:109919982
Bug:113101834
Change-Id: Ib7bed752849b1ed102747e3202dd7aed48d2c6d5
After b/28357356 /dev/alarm is no longer used by android platform.
Also, Pixel devices don't have /dev/alarm.
Bug: 110962171
Test: boot aosp_walleye
Change-Id: Id9723996104a2548ddf366489890c098d1ea87be
After b/28357356 /dev/alarm is no longer used by android platform.
Also, Pixel devices don't have /dev/alarm.
Bug: 110962171
Test: boot aosp_walleye
Change-Id: Id9723996104a2548ddf366489890c098d1ea87be
This is PS1 of aosp/828283 which was reverted. Using PS1 shouldn't cause
the same issue.
Test: vold is able to create directories, ag/5534962
Bug: 116528212
Change-Id: I84aca49a8dae0a087498120780dea0962aca04b3
This reverts commit 92bde4b941.
Reason for revert: Rebooting after OTA fails due to the
filesystem still seeing the old label on the device.
Bug: 116528212
Bug: 119747564
Change-Id: Ib5f920f85c7e305e89c377369dca038d2c6c738c
Test: rollback change
This reverts commit 92bde4b941.
Reason for revert: Rebooting after OTA fails due to the
filesystem still seeing the old label on the device.
Bug: 116528212
Bug: 119747564
Change-Id: Ib5f920f85c7e305e89c377369dca038d2c6c738c
Test: rollback change
This is world-readable so it can be checked in libc's process init.
Test: m
Test: flash sailfish
Bug: 117821125
Change-Id: Iac7317ceb75b5ad9cfb9adabdf16929263fa8a9d
I added ro.bionic.(2nd_)?_(arch|cpu_variant) to vendor system
properties. And have init to write them to files under dev/.
This change set SELinux rules for these properties and files.
For the system properties: vendor/default.prop will set them. init will
read them.
For the files /dev/cpu_variant:.*: init will write them. bionic libc
will read them. (Basically world readable).
This is to allow libc select the right optimized routine at runtime.
Like memcpy / strcmp etc.
Test: getprop to make sure the properties are set.
Test: ls -laZ to make sure /dev/cpu_variant:.* are correctly labeled.
Change-Id: I41662493dce30eae6d41bf0985709045c44247d3
cgroup is labeled from genfs_contexts. Also, cgroup filesystems can't be
context mounted, i.e. it's not possible to mount them with a label other
than "cgroup".
Bug: 110962171
Test: m selinux_policy
Test: boot aosp_walleye
Change-Id: I8319b10136c42a42d1edaee47b77ad1698e87f2c
device_config_flags_health_check_prop is used for enabling/disabling
program flags_health_check which is executed during device booting.
"1" means enabling health check actions in flags_health_check, other
values mean flags_health_check will not perform any action.
Test: build succeeded & manual test
Change-Id: I93739dc5d155e057d72d08fd13097eb63c1193b5
mtd_device does not label any /dev node present on walleye, and the only
permission to that type is:
allow hal_telephony_server mtd_device:dir search;
I suspect there is no need to keep mtd_device around.
Bug: 110962171
Test: boot aosp_walleye
Change-Id: If74b1258b21edeca38c8b7dc07a3a10b751a7e85
Test: ensure no build failures;
add RoleManagerService as a boot phase
ensure no SecurityException in logcat on boot
Change-Id: Ia0803c0fb084fe2b12f5c20f5e46354d0dd1aedf
Lmkd needs read access to /proc/pressure/memory, proc/pressure/cpu
and proc/pressure/io nodes to read current psi levels.
Lmkd needs write access to /proc/pressure/memory to set psi monitor
triggers.
Bug: 111308141
Test: modified lmkd to use PSI and tested using lmkd_unit_test
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I9efd60c7fbb89cc08938fa5119b13d794813b52b
No coredomain domain has access to these types and corresponding /dev
nodes don't exist on the device:
audio_seq_device
audio_timer_device
full_device
i2c_device
vcs_device
Bug: 110962171
Test: m selinux_policy
Test: boot walleye
Change-Id: I89ad4755e6760aa166cb22e2655567e5905dc672
As b/116344577 is fixed, we no longer need the compatbility mapping any
more.
Test: build passed. Boot succeeded.
Change-Id: I0d7f02c59853d34bdabaad6841d87e9ca1ee25d7
A sysprop apexd.status is set by apexd, to that other components (i.e.
init) can determine whether APEXs are all successfully mounted or no
(i.e., being mounted).
The sysprop is only writable by apexd.
Bug: 117403679
Test: adb shell getprop apexd.status returns 'ready'.
Change-Id: I81bcb96e6c5cb9d899f29ffa84f91eab3820be25
This does not actually grant any permissions but just adds the
necessary boilerplate for a new service.
Bug: 117762471
Bug: 117761873
Change-Id: I7cdd2ae368616cfd54fc685c15f775604bfc80d4
We add this type with the intent to expose /system/bin/tcpdump to
vendor on userdebug devices only.
Bug: 111243627
Test: device boots /system/bin/tcpdump correctly labeled as
tcpdump_exec, can browse internet, turn wifi on/off
Change-Id: Icb35e84c87120d198fbb2b44edfa5edf6021d0f0
Input device configuration files .idc, .kl that are placed in /vendor
are currently not accessible.
Allow the read access here.
Bug: 112880217
Test: move .idc and .kl files from /system to /vendor, then observe
logcat. With this patch, avc denials disappear.
Change-Id: I72ad62b9adf415f787565adced73fd8aaff38832
Set up a new service for sw media codec services.
Bug: 111407413
Test: cts-tradefed run cts-dev --module CtsMediaTestCases --compatibility:module-arg CtsMediaTestCases:include-annotation:android.platform.test.annotations.RequiresDevice
Change-Id: Ia1c6a9ef3f0c1d84b2be8756eb1853ffa0597f8e
apexd is a new daemon for managing APEX packages installed
on the device. It hosts a single binder service, "apexservice".
Bug: 112455435
Test: builds, binder service can be registered,
apexes can be accessed, verified and mounted
Change-Id: I634ad100f10b2edcd9a9c0df0d33896fa5d4ed97
New maintenance scheme for mapping files:
Say, V is the current SELinux platform version, then at any point in time we
only maintain (V->V-1) mapping. (V->V-n) map is constructed from top (V->V-n+1)
and bottom (V-n+1->V-n) without changes to previously maintained mapping files.
Caveats:
- 26.0.cil doesn't technically represent 27.0->26.0 map, but rather
current->26.0. We'll fully migrate to the scheme with future releases.
Bug: 67510052
Test: adding new public type only requires changing the latest compat map
Change-Id: Iab5564e887ef2c8004cb493505dd56c6220c61f8
Remove these files from proc_net_type. Domains that need access must
have permission explicitly granted. Neverallow app access except the
shell domain.
Bug: 114475727
Test: atest CtsLibcoreOjTestCases
Test: netstat, lsof
Test: adb bugreport
Change-Id: I2304e3e98c0d637af78a361569466aa2fbe79fa0
Bug: 116732452
Test: No sepolicy violations observed with this change
(cherry picked from commit I1958182dd8ecc496625da2a2a834f71f5d43e7bb)
Change-Id: Ib386767d8acfacf9fedafd9a79dd555ce233f41c
/system/usr/share/zoneinfo is currently labeled zoneinfo_data_file,
a label shared with /data/misc/zoneinfo. However, each of these
directory locations has different security characteristics. In
particular, the files in /system/usr/share/zoneinfo must never be
writable, whereas /data/misc/zoneinfo may be written to by system_server.
Reusing the same label hides these different security characteristics.
Create a separate label for /system/usr/share/zoneinfo.
Test: Device boots and no obvious problems.
Change-Id: I8cf16ff038b06b38f77388e546d9b7a6865f7879
Create a new service type buffer_hub_binder_service for
BufferHubBinderService and allow bufferhubd to publish the service.
Add the service to 26.0, 27.0 and 28.0 compat ignore files since the
service is not available in past versions.
Fixes: 116022258
Test: build passed
Change-Id: I5a21f00329ed474433d96c8d1ce32377f20cada3
...to reflect that the HAL operates on storage devices,
not filesystem.
Bug: 111655771
Test: compiles
Change-Id: Ibb0572cb1878359e5944aa6711331f0c7993ba6e
Merged-In: Ibb0572cb1878359e5944aa6711331f0c7993ba6e
This change limits global access to /system files down to:
/system/bin/linker*
/system/lib[64]/*
/system/etc/ld.config*
/system/etc/seccomp_policy/*
/system/etc/security/cacerts/*
/system/usr/share/zoneinfo/*
Bug: 111243627
Test: boot device, browse internet without denials to system_* types.
Test: VtsHalDrmV1_{1, 0}TargetTest without denials
Change-Id: I69894b29733979c2bc944ac80229e84de5d519f4
llkd needs the ptrace capabilities and dac override to monitor for
live lock conditions on the stack dumps.
Test: compile
Bug: 33808187
Change-Id: Ibc1e4cc10395fa9685c4ef0ca214daf212a5e126
Bug: 78793464
Test: fastboot getvar partition-size:super
'super_block_device' corresponds to the super partition
required for flashing dynamic partitions.
Change-Id: I323634b6797ead7c5face117a7028bf9ab947aea
Also allow adb and fastboot to talk to recovery
through recovery_socket. This enables changing
between modes with usb commands.
Test: No selinux denials
Bug: 78793464
Change-Id: I80c54d4eaf3b94a1fe26d2280af4e57cb1593790
Also allow adb and fastboot to talk to recovery
through recovery_socket. This enables changing
between modes with usb commands.
Test: No selinux denials
Bug: 78793464
Change-Id: I1f97659736429fe961319c642f458c80f199ffb4
Allow lmkd write access to sys.lmk. properties to be able to set
sys.lmk.minfree_levels.
Bug: 111521182
Test: getprop sys.lmk.minfree_levels returns value set by lmkd
Change-Id: I86ff11d75917966857d3a76876a56799bb92a5ad
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
/cache/overlay directory in support of overlayfs mounts on userdebug
and eng devices. Overlayfs in turn can be capable of supporting
adb remount for read-only or restricted-storage filesystems like
squashfs or right-sized (zero free space) system partitions
respectively.
Test: compile
Bug: 109821005
Bug: 110985612
Change-Id: I3ece03886db7cc97f864497cf93ec6c6c39bccd1
Currently, both untrusted apps and priv-apps use the SELinux file label
"app_data_file" for files in their /data/data directory. This is
problematic, as we really want different rules for such files. For
example, we may want to allow untrusted apps to load executable code
from priv-app directories, but disallow untrusted apps from loading
executable code from their own home directories.
This change adds a new file type "privapp_data_file". For compatibility,
we adjust the policy to support access privapp_data_files almost
everywhere we were previously granting access to app_data_files
(adbd and run-as being exceptions). Additional future tightening is
possible here by removing some of these newly added rules.
This label will start getting used in a followup change to
system/sepolicy/private/seapp_contexts, similar to:
-user=_app isPrivApp=true domain=priv_app type=app_data_file levelFrom=user
+user=_app isPrivApp=true domain=priv_app type=privapp_data_file levelFrom=user
For now, this newly introduced label has no usage, so this change
is essentially a no-op.
Test: Factory reset and boot - no problems on fresh install.
Test: Upgrade to new version and test. No compatibility problems on
filesystem upgrade.
Change-Id: I9618b7d91d1c2bcb5837cdabc949f0cf741a2837
Steps taken to produce the mapping files:
1. Add prebuilts/api/28.0/[plat_pub_versioned.cil|vendor_sepolicy.cil]
from the /vendor/etc/selinux/[plat_pub_versioned.cil|vendor_sepolicy.cil]
files built on pi-dev with lunch target aosp_arm64-eng
2. Add new file private/compat/28.0/28.0.cil by doing the following:
- copy /system/etc/selinux/mapping/28.0.cil from pi-dev aosp_arm64-eng
device to private/compat/28.0/28.0.cil
- remove all attribute declaration statement (typeattribute ...) and
sort lines alphabetically
- some selinux types were added/renamed/deleted w.r.t 28 sepolicy.
Find all such types using treble_sepolicy_tests_28.0 test.
- for all these types figure out where to map them by looking at
27.0.[ignore.]cil files and add approprite entries to 28.0.[ignore.]cil.
This change also enables treble_sepolicy_tests_28.0 and install 28.0.cil
mapping onto the device.
Bug: 72458734
Test: m selinux_policy
Change-Id: I90e17c0b43af436da4b62c16179c198b5c74002c
