Commit graph

228 commits

Author SHA1 Message Date
Inseob Kim
3bd63cc206 Move mtectrl to private
Because mtectrl is a system internal domain, and we don't need to expose
the type to vendor.

Test: build and boot
Change-Id: Idb5c4a4c6f175e338722971944bf08ba99835476
2022-01-26 08:59:55 +09:00
Yabin Cui
2e0bc49294 Merge "Add sepolicy for simpleperf_boot." am: 40d41f7639 am: c70015e106 am: ff1610f220 am: 06de1e6910
Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/1950977

Change-Id: I49336c4bd5d4e933e5f3a7eb1b98ac1895465d72
2022-01-25 01:23:34 +00:00
Yabin Cui
f17fb4270c Add sepolicy for simpleperf_boot.
simpleperf_boot is the secontext used to run simpleperf from init,
to generate boot-time profiles.

Bug: 214731005
Test: run simpleperf manually
Change-Id: I6f37515681f4963faf84cb1059a8d5845c2fe5a5
2022-01-15 16:12:51 -08:00
Yabin Cui
674eeb732f Restrict write access to etm sysfs interface. am: 927d7a752b am: f288523c0c am: f8a7b98ff6 am: f09314ba84
Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/1945414

Change-Id: Icde999119eb131bd939ec2f0d0a8621601128622
2022-01-12 19:02:23 +00:00
Yabin Cui
927d7a752b Restrict write access to etm sysfs interface.
Bug: 213519191
Test: boot device
Change-Id: I40d110baea5593a597efa3c14fd0adecee23fc0f
2022-01-11 14:12:52 -08:00
Victor Hsieh
60e2efc74c Merge "Allow composd to delete odrefresh target files" am: 5601d70743 am: e642210a9a am: 969b41347c am: 19ec555037
Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/1927358

Change-Id: Ic2d026c9c075882b2d5f491c45558a685da683f0
2021-12-16 22:44:45 +00:00
Alan Stokes
2914610f17 Allow composd to delete odrefresh target files
We need to remove any existing files (and the directory) to allow
odrefresh in the VM to re-create them via authfs.

But we don't need, and shouldn't have, any other access to them.

Bug: 210460516
Test: composd_cmd async-odrefresh
Change-Id: Iaafe33934146a6b8dda7c28cc1239c2eed167379
2021-12-16 16:24:56 +00:00
Treehugger Robot
5a99c06d7b Merge "Allow compos_fd_server to create artifacts" am: afc596f8f8 am: 29a90d33cb am: 3ad3f0b50c am: bd22ea499a
Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/1922442

Change-Id: I92325962d48ef2fff9f7a0aa45aa009f085f07fc
2021-12-15 12:26:28 +00:00
Alan Stokes
8dc7800578 Allow compos_fd_server to create artifacts
Previously this was always done by odrefresh. But now we are running
odrefresh in the VM we need to allow FD server to do it as its proxy.

Bug: 209572241
Bug: 209572296
Test: composd_cmd forced-oderefresh
Change-Id: I4bc10d6a3ec73789721a0541f04dd7e3865fe826
2021-12-14 16:06:31 +00:00
Rafay Kamran
b8e41c33da Merge "Initial sepolicy for supplemental process" 2021-12-13 14:19:08 +00:00
Victor Hsieh
33aa1a3c52 Allow composd to create odrefresh staging directory
composd in responsible to prepare the staging directory for odrefresh
(in the VM) to write the output to. Temporary output should be put in a
staged directory with a temporary apex_art_staging_data_file context.
When a compilation is finished, the files can then be moved to the final
directory with the final context.

Bug: 205750213
Test: No denials

Change-Id: I9444470b31518242c1bb84fc755819d459d21d68
2021-12-06 08:41:31 -08:00
RafayKamran
eaa18ce0aa Initial sepolicy for supplemental process
Almost 1:1 of the sepolicy for ephemeral apps

Test: make

Bug: 203670791
Ignore-AOSP-First: Feature is developed in internal branch

Change-Id: Ib085c49f29dab47268e479fe5266490a66adaa87
2021-12-06 14:36:08 +00:00
Rajesh Nyamagoud
ce542660c9 Added sepolicy rule for vendor uuid mapping config
New type added in sepolicy to restrict Vendor defined uuid mapping
config file access to SecureElement.

Bug: b/180639372
Test: Run OMAPI CTS and VTS tests
Change-Id: I81d715fa5d5a72c893c529eb542ce62747afcd03
2021-11-20 01:08:11 +00:00
Yifan Hong
aabea20d89 Remove healthd.
Test: pass
Bug: 203245871
Change-Id: I4eb0b4333d7fde2096c4c75b7655baf897900005
2021-10-20 18:47:41 -07:00
Jooyung Han
970166fb4a virtualizationservice to use "staged" apexes
Virtualizationservice queries "package_native" service to get staged
apex info and then reads staged apexes to VM.

Bug: 199146189
Test: MicrodroidHostTestCases
Change-Id: Icbfe5b9a05abc08d3e0270d15969f632b3f57c66
2021-10-05 19:57:20 +09:00
Jiyong Park
3fee5a43c1 Don't prevent crosvm from accessing vendor-owned VM disk images
There can be VM disk images that are specific to the underlying SoC.
e.g. in case where SoC-specific hardware is dedicated to a VM and the VM
needs drivers (or HALs) for the hardware.

Don't prevent crosvm from reading such a SoC-specific VM disk images.

Note that this doesn't actually allow crosvm to do that in AOSP. Such an
allow rule could be added in downstreams where such use cases exist.

Bug: 193605879
Test: m
Change-Id: If19c0b6adae4c91676b142324c2903879548a135
2021-08-09 11:13:54 +09:00
Jiyong Park
5e20d83cfb Add rules for virtualizationservice and crosvm
The test for the services has been running with selinux disabled. To
turn selinux on, required rules are allowed.

Below is the summary of the added rules.

* crosvm can read the composite disk files and other files (APKs,
APEXes) that serve as backing store of the composite disks.
* virtualizationservice has access to several binder services
  - permission_service: to check Android permission
  - apexd: to get apex files list (this will be removed eventually)
* Both have read access to shell_data_file (/data/local/tmp/...) for
testing purpose. This is not allowed for the user build.
* virtualizationservice has access to the pseudo terminal opened by adbd
so that it can write output to the terminal when the 'vm' tool is
invoked in shell.

Bug: 168588769
Test: /apex/com.android.virt/bin/vm run-app --log /dev/null
/data/local/tmp/virt/MicrodroidDemoApp.apk
/data/local/tmp/virt/MicrodroidDemoApp.apk.idsig
/data/local/tmp/virt/instance.img
assets/vm_config.json

without disabling selinux.

Change-Id: I54ca7c255ef301232c6e8e828517bd92c1fd8a04
2021-07-26 10:45:08 +09:00
Jooyung Han
6d4179a66e Fix virtualizationservice rules
Virtualizationservice should be able to read
* /apex/apex-info-list.xml: apex_info_file
* /data/apex/{active, uncompressed}: staging_data_file,
apex_data_file

and pass them to guest OS.

Bug: n/a
Test: atest MicrodroidHostTestCases
  (see logcat for denials)
Change-Id: Ia9dab957a6f912aa193d58e2817a00d4a39b4536
2021-07-16 13:58:03 +09:00
David Anderson
8a525d768f Fix e2fsck denials introduced by latest e2fsprogs merge.
This resulted from changes in e2fsprogs logic which traverses
/proc/mounts to warn about fixing a mounted filesystem.

Denials:

        07-08 15:08:21.207   853   853 I auditd  : type=1400 audit(0.0:88): avc: denied { getattr } for comm="e2fsck" path="/metadata" dev="vda12" ino=2 scontext=u:r:fsck:s0 tcontext=u:object_r:metadata_file:s0 tclass=dir permissive=0
        07-08 15:08:21.207   853   853 I auditd  : type=1400 audit(0.0:89): avc: denied { search } for comm="e2fsck" name="/" dev="tmpfs" ino=1 scontext=u:r:fsck:s0 tcontext=u:object_r:mirror_data_file:s0 tclass=dir permissive=0

Bug: 193137337
Test: treehugger
Change-Id: Ib050463f7fa6ea453795c933ff388d3594bb7c23
2021-07-13 10:17:30 -07:00
Thiébaud Weksteen
9ec532752d Add fusefs_type for FUSE filesystems
Any FUSE filesystem will receive the 'fuse' type when mounted. It is
possible to change this behaviour by specifying the "context=" or
"fscontext=" option in mount().

Because 'fuse' has historically been used only for the emulated storage,
it also received the 'sdcard_type' attribute. Replace the 'sdcard_type'
attribute from 'fuse' with the new 'fusefs_type'. This attribute can be
attached on derived types (such as app_fusefs).

This change:
- Remove the neverallow restriction on this new type. This means any
  custom FUSE implementation can be mounted/unmounted (if the correct
  allow rule is added). See domain.te.
- Change the attribute of 'fuse' from 'sdcard_type' to 'fusefs_type'.
  See file.te.
- Modify all references to 'sdcard_type' to explicitly include 'fuse'
  for compatibility reason.

Bug: 177481425
Bug: 190804537
Test: Build and boot aosp_cf_x86_64_phone-userdebug
Change-Id: Id4e410a049f72647accd4c3cf43eaa55e94c318f
2021-06-28 13:18:46 +02:00
Inseob Kim
5d269aaa55 Remove microdroid specific rules and files
These are moved to packages/modules/Virtualization.

Bug: 189165759
Test: boot device and microdroid
Test: atest MicrodroidHostTestCases
Change-Id: I050add7fef56ced4787117f338e7b5d1fda1c193
2021-06-07 19:22:18 +09:00
Jooyung Han
55393cc42b Allow microdroid_manager to execute shell, etc.
Microdroid_manager should execute a command passed via a VM payload
config. Ideally, the spawned process should be in a dedicated domain
which has the right set of permissions.

For now, it is allowed to execute shell/toybox for testing/debuging. And
also it is allowed to access fusefs to load a library or a config file.

Bug: 189301496
Test: MicrodroidHostTestCases
Change-Id: I7872514b40a9e23bbbed2b3e1ccd322f4e9cf832
2021-06-02 09:54:12 +09:00
Jiyong Park
6645ad3b1f Add rules for microdroid_launcher
Microdroid_launcher is an executable in microdroid. It's role is to load
a shared library in an APK that is shared from the host Android and
execute it by calling an entry point (android_native_main) in it.

For now, it is executed from shell, but will eventually be executed from
a binder service (which also is running in microdroid) called
microdroid_manager.

Bug: 188513012
Test: atest MicrodroidHostTestCases
Change-Id: I150a958c1ed0e3e960f4b4b577e808e54e898644
2021-05-25 17:22:01 +09:00
Jiyong Park
cf1eb370d8 Allow zipfuse to mount /dev/vd* on /mnt/apk
zipfuse is a FUSE implementation that runs in microdroid. In the virtual
machine, it reads a block device (/dev/vd* via the symlink
/dev/block/by-name/microdroid-apk) whose content is read from an apk
in the host side. Then the makes the entries in the zip file (apk is
also a zip) as regular files in the virtual machine.

Note that the filesystem is mounted as default 'fuse:filesystem' because
it's mounted without the `fcontext` option, which is due to the libfuse
library we are importing from crosvm (b/188400186).

Bug: 188388851
Test: atest MicrodroidHostTestCases
Change-Id: Ide9bac88088535f4f335f2725fa929d23015e6e1
2021-05-25 14:10:55 +09:00
David Anderson
018004d9d1 Allow fastbootd to mount /metadata in recovery.
It is important that fastbootd is able to mount /metadata in recovery, in
order to check whether Virtual A/B snapshots are present. This is
enabled on userdebug builds, but currently fails on user builds.

Fixes:

        audit: type=1400 audit(7258310.023:24): avc:  denied  { mount } for pid=511 comm="fastbootd" name="/" dev="sda15" ino=2 scontext=u:r:fastbootd:s0 tcontext=u:object_r:labeledfs:s0 tclass=filesystem permissive=0

Bug: 181097763
Test: fastboot flash on user build
Change-Id: I1abeeaa3109e08755a1ba44623a46b12d9bfdedc
2021-05-05 16:37:56 -07:00
Hridya Valsaraju
498318cc65 Revert "Revert "Exclude vendor_modprobe from debugfs neverallow restrictions""
This reverts commit 231c04b2b9.

Now that b/186727553 is fixed, it should be safe to revert this revert.

Test: build
Bug: 184381659
Change-Id: If26ba23df19e9854a121bbcf10a027c738006515
2021-05-04 22:07:08 -07:00
Hridya Valsaraju
23f9f51fcd Revert "Revert "Add neverallows for debugfs access""
This reverts commit e95e0ec0a5.

Now that b/186727553 is fixed, it should be safe to revert this revert.

Test: build
Bug: 184381659
Change-Id: Ibea3882296db880f5cafe4f9efa36d79a183c8a1
2021-05-04 22:06:46 -07:00
Hridya Valsaraju
a885dd84c7 Revert "Revert "Add a neverallow for debugfs mounting""
This reverts commit f9dbb72654.
Issues with GSI testing fixed with
https://android-review.googlesource.com/c/platform/build/+/1686425/

Bug: 184381659
Test: manual
Change-Id: Icd07430c606e294dfaad2fc9b37d34e3dae8cbfc
2021-05-02 21:41:53 -07:00
Yurii Zubrytskyi
b382f02bf4 [incfs] Allow everyone read the IncFS sysfs features
Every process needs to be able to determine the IncFS features
to choose the most efficient APIs to call

Bug: 184357957
Test: build + atest PackageManagerShellCommandTest
Change-Id: Ia84e3fecfd7be1209af076452cc27cc68aefd80d
2021-04-21 15:15:40 -07:00
Nikita Ioffe
17bd4dda4a Allow adbd to pull apexes from /data/apex/active
Test: adb pull /data/apex/active/com.android.apex.cts.shim@v2.apex
Bug: 184886365
Change-Id: Ibaac390a99e65a8b388d3c62761d96ec8f8e0846
2021-04-12 23:34:31 +00:00
Yabin Cui
bd4c9e8530 Add permissions in profcollectd to parse kernel etm data.
To parse etm data for kernel and kernel modules, add below permissions
to profcollectd:
1. Get kernel start address and module addresses from /proc/kallsyms
and /proc/modules.
2. Get kernel build id from /sys/kernel/notes.
3. Read kernel module files in vendor dir.

Bug: 166559473
Test: run profcollectd.

Change-Id: I2e0b346379271fadc20e720722f7c9a687335ee2
2021-04-08 16:03:59 -07:00
Kalesh Singh
326fc27064 Sepolicy for mm_events
Allow mm_events to periodically arm the mm_events
perfetto trace config if mm_events is enabled.

Bug: 183037386
Test: boot; setprop persist.mm_events.enabled true; No avc denials
Change-Id: Ia9760001e7fb591f18e3e816a63281167a658c74
2021-04-06 22:46:32 -04:00
Alex Light
16dfb432b3 Use postinstall file_contexts
Previously we would mount OTA images with a 'context=...' mount
option. This meant that all selinux contexts were ignored in the ota
image, limiting the usefulness of selinux in this situation. To fix
this the mount has been changed to not overwrite the declared contexts
and the policies have been updated to accurately describe the actions
being performed by an OTA.

Bug: 181182967
Test: Manual OTA of blueline
Merged-In: I5eb53625202479ea7e75c27273531257d041e69d
Change-Id: I5eb53625202479ea7e75c27273531257d041e69d
2021-03-24 17:00:35 -07:00
Marco Ballesio
aa4ce95c6f sepolicy: rules for uid/pid cgroups v2 hierarchy
Bug: 168907513
Test: verified the correct working of the v2 uid/pid hierarchy in normal
and recovery modes

This reverts commit aa8bb3a29b.

Change-Id: Ib344d500ea49b86e862e223ab58a16601eebef47
2021-02-11 23:40:38 +00:00
Martijn Coenen
9e794114b2 Merge "SELinux policy for on-device signing binary." 2021-02-05 11:22:37 +00:00
Treehugger Robot
96acdc0b22 Merge "Revert^3 "sepolicy: rules for uid/pid cgroups v2 hierarchy"" 2021-02-05 01:59:16 +00:00
Marco Ballesio
aa8bb3a29b Revert^3 "sepolicy: rules for uid/pid cgroups v2 hierarchy"
a54bed6907

Bug: 151660495
Test: verified proper boot in regular mode and proper working of adb in
recovery

Change-Id: Id70d27a6162af6ede94661005d80a2a780057089
2021-02-04 22:33:14 +00:00
Martijn Coenen
6afdb72cbb SELinux policy for on-device signing binary.
Bug: 165630556
Test: no denials on boot
Change-Id: I9d75659fb1eaea562c626ff54521f6dfb02da6b3
2021-02-03 16:15:48 +01:00
Treehugger Robot
883de3cd2e Merge "Add vendor_public_framework_file type to SEPolicy" 2021-01-28 11:41:00 +00:00
Marco Ballesio
a54bed6907 Revert^2 "sepolicy: rules for uid/pid cgroups v2 hierarchy"
51c04ac27b

Change-Id: Idc35a84b5faabfb9bdd7a7693f51b11938eb0489
2021-01-27 06:07:48 +00:00
Dorin Drimus
84cd7087d5 Add vendor_public_framework_file type to SEPolicy
And allow access from system apps to vendor libs public only for system.
These files should be marked individually by OEMs. Maintainance
ownership for these libraries is also OEM's responsability.
Similar with vendor_public_libs_file type, this allows for an explicit
labeling of OEM system apps that can access libs from vendor.

Bug: 172526961
Test: build-only change, policy builds
Change-Id: I7d4c8232e0b52e73f373d3347170c87ab2dcce52
2021-01-26 15:59:37 +01:00
Orion Hodson
8f75f76fbd Permissions for odrefresh and /data/misc/apexdata/com.android.art
odrefresh is the process responsible for checking and creating ART
compilation artifacts that live in the ART APEX data
directory (/data/misc/apexdata/com.android.art).

There are two types of change here:

1) enabling odrefresh to run dex2oat and write updated boot class path
   and system server AOT artifacts into the ART APEX data directory.

2) enabling the zygote and assorted diagnostic tools to use the
   updated AOT artifacts.

odrefresh uses two file contexts: apex_art_data_file and
apex_art_staging_data_file. When odrefresh invokes dex2oat, the
generated files have the apex_art_staging_data_file label (which allows
writing). odrefresh then moves these files from the staging area to
their installation area and gives them the apex_art_data_file label.

Bug: 160683548
Test: adb root && adb shell /apex/com.android.art/bin/odrefresh
Change-Id: I9fa290e0c9c1b7b82be4dacb9f2f8cb8c11e4895
2021-01-13 10:38:22 +00:00
Florian Mayer
a8a3d8b1bf Allow heapprofd central mode on user builds.
This simplifies operation by removing a special case for user builds.

Test: atest CtsPerfettoTestCases on user
Test: atest CtsPerfettoTestCases on userdebug
Test: atest perfetto_integrationtests on userdebug
Bug: 153139002
Change-Id: Ibbf3dd5e4f75c2a02d931f73b96fabb8157e0ebf
2021-01-11 17:19:02 +00:00
Mohammad Samiul Islam
a45cddae5e Allow priv_app read access to /data/app-staging directory
During staged installation, we no longer create duplicate sessions for
verification purpose. Instead, we send the original files in
/data/app-staging folder to package verifiers for verification. That
means, Phonesky needs access to /data/app-staging folder to be able to
verify the apks inside it.

Bug: 175163376
Test: atest StagedInstallTest#testPlayStoreCanReadAppStagingDir
Test: atest StagedInstallTest#testAppStagingFolderCannotBeReadByNonPrivApps
Change-Id: I5cbb4c8b7dceb63954c747180b39b4a21d2463af
2020-12-10 23:46:15 +00:00
Jonglin Lee
51c04ac27b Revert "sepolicy: rules for uid/pid cgroups v2 hierarchy"
Revert submission 1511692-cgroup v2 uid/pid hierarchy

Reason for revert: Causing intermittent cgroup kernel panics
Reverted Changes:
I80c2a069b:sepolicy: rules for uid/pid cgroups v2 hierarchy
I73f3e767d:libprocessgroup: uid/pid hierarchy for cgroup v2

Bug: 174776875
Change-Id: I63a03bb43d87c9aa564b1436a45fd5ec023aac87
Test: Locally reverted and booted 100 times without kernel panic
2020-12-04 03:12:59 +00:00
Marco Ballesio
f46d7a26c1 sepolicy: rules for uid/pid cgroups v2 hierarchy
the cgroups v2 uid/gid hierarchy will replace cgroup for all sepolicy
rules. For this reason, old rules have to be duplicated to cgroup_v2,
plus some rules must be added to allow the ownership change for cgroup
files created by init and zygote.

Test: booted device, verified correct access from init, system_server
and zygote to the uid/pid cgroup files

Change-Id: I80c2a069b0fb409b442e1160148ddc48e31d6809
2020-11-30 11:46:14 -08:00
Suren Baghdasaryan
37f1a137b6 Add rules for per-API level task profiles and cgroup description files
Define access rights to new per-API level task profiles and cgroup
description files under /etc/task_profiles/.

Bug: 172066799
Test: boot with per-API task profiles
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I04c9929fdffe33a9fc82d431a53f47630f9dcfc3
2020-11-23 09:30:26 -08:00
Alan Stokes
8bf8a262e5 Exempt older vendor images from recent mls changes.
We no longer allow apps with mlstrustedsubject access to app_data_file
or privapp_data_file. For compatibility we grant access to all apps on
vendor images for SDK <= 30, whether mlstrustedsubject or not. (The
ones that are not already have access, but that is harmless.)

Additionally we have started adding categories to system_data_file
etc. We treat these older vendor apps as trusted for those types only.

The result is that apps on older vendor images still have all the
access they used to but no new access.

We add a neverallow to prevent the compatibility attribute being
abused.

Test: builds
Change-Id: I10a885b6a122292f1163961b4a3cf3ddcf6230ad
2020-11-17 17:30:10 +00:00
Yifan Hong
f5f4c1207a Revert "Add /boot files as ramdisk_boot_file."
This reverts commit 2576a2fc30.

Reason for revert: conflict with device-specific sepolicy

Bug: 170411692
Change-Id: Ie5fde9dd91b603f155cee7a9d7ef432a05dc6827
Test: pass
2020-10-08 22:13:44 +00:00
Yifan Hong
2576a2fc30 Add /boot files as ramdisk_boot_file.
/boot/etc/build.prop is a file available at first_stage_init to
be moved into /second_stage_resources.

The file is only read by first_stage_init before SELinux is
initialized. No other domains are allowed to read it.

Test: build aosp_hawk
Test: boot and getprop
Bug: 170364317
Change-Id: I0f8e3acc3cbe6d0bae639d2372e1423acfc683c7
2020-10-08 07:55:12 -07:00
Orion Hodson
76ce7f5eaa Remove policy for deprecated ART apex update scripts
Earlier changes removed the scripts for ART APEX pre- and post-install
hooks (I39de908ebe52f06f19781dc024ede619802a3196) and the associated
boot integrity checks (I61b8f4b09a8f6695975ea1267e5f5c88f64a371f), but
did not cleanup the SELinux policy.

Bug: 7456955
Test: Successful build and boot
Test: adb install com.android.art.debug && adb reboot
Change-Id: I1580dbc1c083438bc251a09994c28107570c48c5
2020-09-30 16:14:41 +01:00
Yi Kong
4555123090 Policies for profcollectd
Bug: 79161490
Test: run profcollect with enforcing
Change-Id: I19591dab7c5afb6ace066a3e2607cd290c0f43a6
2020-09-08 12:29:47 +00:00
Yi Kong
1be8dfacfd Move a couple of treble policies to private
We need to add an exception for a private type, it can only be
recognised if these are private policies.

Bug: 79161490
Test: TreeHugger
Change-Id: Icc902389e545f1ff4c92d2ab81c0617a3439f466
2020-08-31 13:55:41 +00:00
Inseob Kim
96b9d86a0e Remove exported2_system_prop
It's not used anymore.

Bug: 161659925
Test: boot
Change-Id: I5b08bdace28a509d464759a66025c951178225c6
Merged-In: I5b08bdace28a509d464759a66025c951178225c6
(cherry picked from commit 7d96ddbfb0)
2020-08-06 12:52:32 +09:00
Janis Danisevskis
abb93f24c0 Make Keystore equivalent policy for Keystore2
Bug: 158500146
Bug: 159466840
Test: keystore2_test tests part of this policy
Change-Id: Id3dcb2ba4423d93170b9ba7ecf8aed0580ce83bc
Merged-In: Id3dcb2ba4423d93170b9ba7ecf8aed0580ce83bc
2020-08-05 16:11:48 +00:00
Inseob Kim
acd02fc5e4 Rename exported3_radio_prop to radio_control_prop
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
2020-08-03 09:23:02 +00:00
Jeff Sharkey
a0e7a6da28 Update language to comply with Android's inclusive language guidance
See https://source.android.com/setup/contribute/respectful-code for reference

Bug: 161896447
Change-Id: I0caf39b349c48e44123775d98c52a773b0b504ff
2020-07-31 12:28:11 -06:00
Inseob Kim
162b259fed Remove exported3_default_prop
Bug: 155844385
Test: m selinux_policy
Change-Id: Ib0dc95ca2a90545286583c157d3570225ae35602
2020-07-21 04:16:04 +00:00
Jeff Vander Stoep
bd3fd0eebe Label kprobes and restrict access
Bug: 149659981
Test: build
Change-Id: I6abcd1bb9af15e7ba0f1f5e711ea9ac661bffc25
2020-06-11 07:43:30 +02:00
Inseob Kim
ad6317018c Add contexts for exported telephony props
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)
2020-06-04 16:10:44 +09:00
Inseob Kim
dbcc459b90 Take new types out of compatible_property_only
compatible_property_only is meaningless to new types introduced after
Android P because the macro is for types which should have different
accessibilities depending on the device's launching API level.

Bug: N/A
Test: system/sepolicy/tools/build_policies.sh
Change-Id: If6b1cf5e4203c74ee65f170bd18c3a354dca2fd4
2020-05-25 17:31:26 +09:00
Inseob Kim
dc1e5019d6 Rename system_radio_prop
For whatever reason sys.usb.config* has been labeled as
system_radio_prop, which doesn't make sense. Changing context name as
usb_prop. For the same reason exported_system_radio_prop is also
renamed to usb-related names.

Bug: 71814576
Bug: 154885206
Test: m selinux_policy
Change-Id: If30bc620dbeac926a8b9bcde908357fda739a6c1
Merged-In: If30bc620dbeac926a8b9bcde908357fda739a6c1
(cherry picked from commit 44fbcdb677)
2020-05-15 15:06:10 +09:00
Nikita Ioffe
7b9d03c1b2 Merge "Allow priv_app to search apex_data_file and read staging_data_file" 2020-05-13 20:15:12 +00:00
Inseob Kim
bfb3708234 Rename contexts of ffs props
Bug: 71814576
Bug: 154885206
Test: m sepolicy_test
Change-Id: Idacc3635851b14b833bccca177d784f4bb92c763
2020-05-11 21:23:37 +09:00
Inseob Kim
721d921aa5 Rename surfaceflinger properties' contexts
Cleaning up exported*_system_prop and moving surfaceflinger properties
to new property contexts.

Bug: 152468529
Bug: 154885206
Test: boot cf_x86 and crosshatch
Change-Id: I7f8a684e9cbabce2f55a5292d7b2283ac0716cd9
2020-04-29 10:43:06 +09:00
Inseob Kim
4ed4737aaf Add boot_status_prop for boot completed props
Assigning a new context boot_status_prop for following two properties:
- sys.boot_completed
- dev.bootcomplete

Bug: 154885206
Test: boot cf_x86 and crosshatch, see no denials
Change-Id: Ieadabf90a9a1b54b52a1283bd648c11c95d558dd
Merged-In: Ieadabf90a9a1b54b52a1283bd648c11c95d558dd
(cherry picked from commit 2973c96055)
2020-04-27 15:34:53 +09:00
Nikita Ioffe
01d4c99175 Allow priv_app to search apex_data_file and read staging_data_file
This changes are necessary to make files under /data/apex/active
be readable by Phonesky.

Test: builds
Bug: 154635217
Merged-In: I14116f02f3d3f0a8390f1d968a3971f15bd4b3f2
Change-Id: I14116f02f3d3f0a8390f1d968a3971f15bd4b3f2
(cherry picked from commit 89d43a51ba)
2020-04-24 23:41:13 +01:00
Inseob Kim
d8c39d9e56 Rename exported_dalvik_prop to dalvik_config_prop
This is to clean up bad name "exported_dalvik_prop"

Bug: 154465224
Test: sepolicy_tests
Test: treble_sepolicy_tests 26.0 ~ 29.0
Change-Id: Ie5e738b5985c1db1bca7a857971d8490a7980b5b
2020-04-20 19:37:34 +09:00
Inseob Kim
3f5a7d247a Rename exported and exported2 vold prop
This is a subtask to clean up bad context names "exported*_prop".

Bug: 152469526
Test: m
Change-Id: Ie2d4046732e9d6562294fa664dcd7f019aa7c229
2020-04-07 12:56:23 +09:00
Florian Mayer
356b98d552 Refactor sepolicy to support central mode on user.
Functionally this is a no-op change.

Bug: 152976928
Change-Id: If4c0c6c74e60cc84f4adedfd430b385795cd15eb
2020-04-06 12:33:43 +00:00
Inseob Kim
fd2d6ec3bc Rename exported2_config_prop to systemsound_config_prop
Fixing bad names (exported*_prop) on property contexts.

Bug: 152468650
Test: m sepolicy_tests
Change-Id: Ie98212ee0fa89966e70faa83322b65b613f3b3f5
2020-04-01 18:23:39 +09:00
Inseob Kim
55e5c9b513 Move system property rules to private
public/property split is landed to selectively export public types to
vendors. So rules happening within system should be in private. This
introduces private/property.te and moves all allow and neverallow rules
from any coredomains to system defiend properties.

Bug: 150331497
Test: system/sepolicy/tools/build_policies.sh
Change-Id: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe
Merged-In: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe
(cherry picked from commit 42c7d8966c)
2020-03-18 16:46:04 +00:00
Nikita Ioffe
91c3795b2c Add userspace_reboot_test_prop
This property type represents properties used in CTS tests of userspace
reboot. For example, test.userspace_reboot.requested property which is
used to check that userspace reboot was successful and didn't result in
full reboot, e.g.:
* before test setprop test.userspace_reboot.requested 1
* adb reboot userspace
* wait for boot to complete
* verify that value of test.userspace_reboot.requested is still 1

Test: adb shell setprop test.userspace_reboot.requested 1
Bug: 150901232
Change-Id: I45d187f386149cec08318ea8545ab864b5810ca8
Merged-In: I45d187f386149cec08318ea8545ab864b5810ca8
(cherry picked from commit 3bd53a9cee)
2020-03-16 15:13:08 +00:00
Ryan Savitski
008465e5ec traced_perf sepolicy tweaks
* allow shell to enable/disable the daemon via a sysprop
* don't audit signals, as some denials are expected
* exclude zygote from the profileable set of targets on debug builds.
  I've not caught any crashes in practice, but believe there's a
  possibility that the zygote forks while holding a non-whitelisted fd
  due to the signal handler.

Change-Id: Ib237d4edfb40b200a3bd52e6341f13c4777de3f1
2020-02-24 12:23:13 +00:00
Igor Murashkin
e39f8d23ed sepolicy: policies for iorap.inode2filename
binary transitions are as follows:

iorapd (fork/exec) -> iorap.cmd.compiler (fork/exec) -> iorap.inode2filename

Bug: 117840092
Test: adb shell cmd jobscheduler run -f android 28367305
Change-Id: I4249fcd37d2c8cbdd0ae1a0505983cce9c7fa7c6
2020-02-20 16:38:17 -08:00
Kiyoung Kim
dc34050e17 Remove sys.linker property
sys.linker property was defined to enable / disable generate linker
configuration, but the property has been removed. Remove sys.linker
property definition as it is no longer in use

Bug: 149335054
Test: m -j passed && cuttlefish worked without sepolicy error
Change-Id: Iacb2d561317d0920f93104717ce4f4bb424cc095
Merged-In: Iacb2d561317d0920f93104717ce4f4bb424cc095
2020-02-19 10:16:06 +09:00
David Stevens
3942fe1682 selinux policy for buffer queue config
Test: boot and check for no policy violations

Change-Id: I1ea2a79b9a45b503dcb061c196c5af1d0ddab653
2020-02-13 20:11:47 +09:00
Nikita Ioffe
44f5ffca15 Add userspace_reboot_log_prop
This properties are used to compute UserspaceRebootAtom and are going to
be written by system_server. Also removed now unused
userspace_reboot_prop.

Test: builds
Bug: 148767783
Change-Id: Iee44b4ca9f5d3913ac71b2ac6959c232f060f0ed
2020-02-07 01:57:55 +00:00
Jeffrey Vander Stoep
9788ca1738 Merge "net_dns_prop: neverallow most access" 2020-02-06 12:16:22 +00:00
Jeff Vander Stoep
5afd6d788c net_dns_prop: neverallow most access
Prepare for these properties to be completely removed.

Bug: 33308258
Test: build
Change-Id: Ie22918247db1d6e85a36e0df958916b6752629d0
2020-02-05 09:55:30 +01:00
Oli Lan
335d704c77 Add sepolicy rules to allow apexd to perform snapshot and restore.
This adds rules required for apexd to perform snapshot and restore
of the new apex data directories.

See go/apex-data-directories for more information on the feature.

See the chain of CLs up to ag/10169468 for the implementation of
snapshot and restore.

Bug: 141148175
Test: atest StagedRollbackTest#testRollbackApexDataDirectories_DeSys
Test: atest StagedRollbackTest#testRollbackApexDataDirectories_DeUser
Test: atest StagedRollbackTest#testRollbackApexDataDirectories_Ce
Change-Id: I1756bbc1d80cad7cf9c2cebcee9bee6bc261728c
2020-01-27 18:21:29 +00:00
Ryan Savitski
845569e2e5 debug builds: allow perf profiling of most domains
As with heapprofd, it's useful to profile the platform itself on debug
builds (compared to just apps on "user" builds).

Bug: 137092007
Change-Id: I8630c20e0da9c67e4927496802a4cd9cacbeb81a
2020-01-22 22:04:02 +00:00
Ryan Savitski
67a82481f8 initial policy for traced_perf daemon (perf profiler)
The steps involved in setting up profiling and stack unwinding are
described in detail at go/perfetto-perf-android.

To summarize the interesting case: the daemon uses cpu-wide
perf_event_open, with userspace stack and register sampling on. For each
sample, it identifies whether the process is profileable, and obtains
the FDs for /proc/[pid]/{maps,mem} using a dedicated RT signal (with the
bionic signal handler handing over the FDs over a dedicated socket). It
then uses libunwindstack to unwind & symbolize the stacks, sending the
results to the central tracing daemon (traced).

This patch covers the app profiling use-cases. Splitting out the
"profile most things on debug builds" into a separate patch for easier
review.

Most of the exceptions in domain.te & coredomain.te come from the
"vendor_file_type" allow-rule. We want a subset of that (effectively all
libraries/executables), but I believe that in practice it's hard to use
just the specific subtypes, and we're better off allowing access to all
vendor_file_type files.

Bug: 137092007
Change-Id: I4aa482cfb3f9fb2fabf02e1dff92e2b5ce121a47
2020-01-22 22:04:01 +00:00
Nikita Ioffe
32e7ea0096 Allow apps to read ro.init.userspace_reboot.is_supported
This property essentially implements
PowerManager.isRebootingUserspaceSupported[0] public API, hence apps
should be able to read it.

[0]: 73cab34d9f:core/java/android/os/PowerManager.java;l=1397

Test: m checkbuild
Test: atest CtsUserspaceRebootHostSideTestCases
Test: adb shell getprop ro.init.userspace_reboot.is_supported
Bug: 135984674
Change-Id: I09cab09735760529de81eb6d5306f052ee408a6e
2020-01-14 12:39:23 +00:00
Anton Hansson
b84133555a Rename sdkext sepolicy to sdkextensions
The module is getting renamed, so rename all the policy
relating to it at the same time.

Bug: 137191822
Test: presubmit
Change-Id: Ia9d966ca9884ce068bd96cf5734e4a459158c85b
Merged-In: Ia9d966ca9884ce068bd96cf5734e4a459158c85b
(cherry picked from commit 6505573c36)
2020-01-08 11:41:18 +00:00
Robin Lee
cbfe879fe6 vendor_init can set config.disable_cameraservice
This had been settable by vendors up to and including Q release by
making config_prop avendor_init writeable. We don't allow this any
more. This should be a real vendor settable property now.

Bug: 143755062
Test: adb logcat -b all | grep cameraservice
Test: atest CtsCameraTestCases
Change-Id: Id583e899a906da8a8e8d71391ff2159a9510a630
2020-01-07 06:57:42 +00:00
Ricky Wai
5b1b423039 Allow Zygote and Installd to remount directories in /data/data
Zygote/Installd now can do the following operations in app data directory:
- Mount on it
- Create directories in it
- Mount directory for each app data, and get/set attributes

Bug: 143937733
Test: No denials at boot
Test: No denials seen when creating mounts
Change-Id: I6e852a5f5182f1abcb3136a3b23ccea69c3328db
2019-12-13 12:30:26 +00:00
Anton Hansson
e822545909 Add sepolicy for sdkext module prop
Add a domain for derive_sdk which is allowed to set
persist.com.android.sdkext.sdk_info, readable by all
apps (but should only be read by the BCP).

Bug: 137191822
Test: run derive_sdk, getprop persist.com.android.sdkext.sdk_info
Change-Id: I389116f45faad11fa5baa8d617dda30fb9acec7a
2019-12-05 14:11:50 +00:00
Ashwini Oruganti
8f079fb0e2 Merge "Create a separate SELinux domain for gmscore" 2019-11-25 16:59:10 +00:00
Ashwini Oruganti
c46a7bc759 Create a separate SELinux domain for gmscore
This change creates a gmscore_app domain for gmscore. The domain is
currently in permissive mode (for userdebug and eng builds), while we
observe the SELinux denials generated and update the gmscore_app rules
accordingly.

Bug: 142672293
Test: Flashed a device with this build and verified
com.google.android.gms runs in the gmscore_app domain. Tested different
flows on the Play Store app, e.g., create a new account, log in, update
an app, etc. and verified no new denials were generated.
Change-Id: Ie5cb2026f1427a21f25fde7e5bd00d82e859f9f3
2019-11-22 10:39:19 -08:00
Nikita Ioffe
7065e46b5d Add selinux rules for userspace reboot related properties
By default sys.init.userspace_reboot.* properties are internal to
/system partition. Only exception is
sys.init.userspace_reboot.in_progress which signals to all native
services (including vendor ones) that userspace reboot is happening,
hence it should be a system_public_prop.

Only init should be allowed to set userspace reboot related properties.

Bug: 135984674
Test: builds
Test: adb reboot userspace
Change-Id: Ibb04965be2d5bf6e81b34569aaaa1014ff61e0d3
2019-11-19 17:41:28 +00:00
David Anderson
74affd1403 Add fastbootd to the sys_rawio whitelist.
A similar problem was previously encountered with the boot control HAL
in bug 118011561. The HAL may need access to emmc to implement
set_active commands.

fastbootd uses the boot control HAL in passthru mode when in recovery,
so by extension, it needs this exception as well.

Bug: 140367894
Test: fastbootd can use sys_rawio
Change-Id: I1040e314a58eae8a516a2e999e9d4e2aa51786e7
2019-10-25 22:32:32 +00:00
Igor Murashkin
9f74a428c4 sepolicy: Add iorap_prefetcherd rules
/system/bin/iorapd fork+execs into /system/bin/iorap_prefetcherd during
startup

See also go/android-iorap-security for the design doc

Bug: 137403231
Change-Id: Ie8949c7927a98e0ab757bc46230c589b5a496360
2019-10-22 12:45:46 -07:00
Tao Bao
987aa96d30 install_recovery no longer needs to access /cache.
applypatch (called by install_recovery) used to back up the source
partition to /cache when installing the recovery image on non-A/B
devices. The change from the same topic drops the backup behavior.

The access to /cache was also the reason for having dac_override_allowed
(applypatch runs as root:root, while /cache is owned by system:cache
with 0770).

Bug: 68319577
Test: Invoke the code that installs recovery image; check that recovery
      is installed successfully without denials.
Change-Id: I0533ba82260d0adb23b328e6eef8bd6dda3d0439
2019-09-23 11:35:47 -07:00
Tobias Thierer
02924043e3 Merge "SEPolicy for boringssl_self_test." 2019-09-07 23:46:00 +00:00
Tobias Thierer
353ad0fd47 SEPolicy for boringssl_self_test.
This CL adds hand-written SELinux rules to:
 - define the boringssl_self_test security domain
 - label the corresponding files at type boringssl_self_test_marker
   and boringssl_self_test_exec.
 - define an automatic transition from init to boringssl_self_test
   domains, plus appropriate access permissions.

Bug: 137267623
Test: When run together with the other changes from draft CL topic
      http://aosp/q/topic:bug137267623_bsslselftest, check that:
      - both /dev/boringssl/selftest/* marker files are
        present after the device boots.
      - Test: after the boringssl_self_test{32,64} binaries have
        run, no further SELinux denials occur for processes
        trying to write the marker file.

Change-Id: I77de0bccdd8c1e22c354d8ea146e363f4af7e36f
2019-09-05 02:40:57 +01:00
Kiyoung Kim
039549102c Merge changes from topic "use_generated_linkerconfig"
am: aff00188eb

Change-Id: I82225595e27aee8677c94d6a713d6ef5a195e2d7
2019-08-14 02:47:24 -07:00
Kiyoung Kim
98d2042b00 Add more permission for linkerconfig
am: 70e931caba

Change-Id: I734adf5a17214c895a3799cf04bdabb8dbf53039
2019-08-14 02:47:20 -07:00
Kiyoung Kim
82c87ede24 Define sepolicy with property for linker
To support linker-specific property, sys.linker.* has been defined as
linker_prop. This will have get_prop access from domain so all binaries
can start with linker using proper property access level.

Bug: 138920271
Test: m -j && Confirmed from cuttlefish that get_prop errors are no longer found
Change-Id: Iaf584e0cbdd5bca3d5667e93cf9a6401e757a314
2019-08-14 12:35:15 +09:00
Kiyoung Kim
70e931caba Add more permission for linkerconfig
Additional permission is required for linkerconfig from domain to get
access to ld.config.txt file from linker. This change allows linker to
get /dev/linkerconfig/ld.config.txt

Bug: 138920271
Test: m -j && confirmed from cuttlefish
Change-Id: Id130a072add8ae82840b0b4d9e997e146f502124
2019-08-08 17:18:21 +09:00