Commit graph

36 commits

Author SHA1 Message Date
Neil Fuller
37888b33ba Remove TZUvA feature.
The feature was superseded by tzdata mainline module(s).

Bug: 148144561
Test: see system/timezone
Test: m selinux_policy
Change-Id: I48d445ac723ae310b8a134371342fc4c0d202300
Merged-In: I48d445ac723ae310b8a134371342fc4c0d202300
2022-06-13 11:45:50 +00:00
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
Yifan Hong
be04b091bb Allow binder services to r/w su:tcp_socket
Test: binderHostDeviceTest
Bug: 182914638
Change-Id: I1c8d3b2194bc20bd2bcde566190aa5c73d7e7db9
2021-06-08 10:39:02 -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
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
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
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
Jeongik Cha
832a8a9389 mediaserver, mediaextractor, drmserver: allow vendor_overlay_file
MediaPlayer cannot load a video from RRO packages.
So, add allow rules which is necessary to play the video.

Bug: b/154795779
Test: check if MediaPlayer can load a video in RRO
Change-Id: I06eed146b6e70a548b6b4f4faf56ba2bccd68140
2020-04-29 11:52:45 +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
Pirama Arumuga Nainar
da437c3a8f Merge "In native coverage builds, allow all domains to access /data/misc/trace" am: 1eb45b5606
am: f6a95d82d8

Change-Id: Iac5840a4b2a5edf394954dff0a14e307fed28778
2019-06-14 12:05:15 -07:00
Pirama Arumuga Nainar
ce9c0c5a5f In native coverage builds, allow all domains to access /data/misc/trace
Bug: http://b/135139675

Coverage files are written to /data/misc/trace (governed by the
method_trace_data_file selinux type).  Allow all domains to access
(create directories, access files) this directory when native coverage
is enabled (by setting NATIVE_COVERAGE to true) in an userdebug or eng
build.

Also relax neverallow constraints to allow access to
method_trace_data_file for native coverage builds.

Test: Build 32-bit cuttlefish with coverage:
          m NATIVE_COVERAGE=true COVERAGE_PATHS="*"
      and verify that there are no selinux denials in kernel log and
      logcat.

Change-Id: I3fe7c77612854b9de7de7a0ddd5cbf44a2f5c21e
2019-06-14 08:31:51 -07:00
Marco Nelissen
ba258f0ec0 Remove unneeded permissions
Media component update service is removed, so selinux
permissions for it are no longer needed.

Bug: 123250010
Test: boot, play video
Change-Id: I0fec6839f5caf53d16399cb72dcdd6df327efc95
2019-05-09 22:19:33 +00:00
Dongwon Kang
523c746859 SEPolicy updates for adding native flag namespace(media).
Test: add sepolicy, build, check GetServerConfigurableFlag function
Bug: 123658514
Change-Id: I798b0ef901068c53070e768305acd38118a7e886
2019-01-31 10:06:32 -08:00
Jeff Vander Stoep
41a2abfc0d Properly Treble-ize tmpfs access
This is being done in preparation for the migration from ashmem to
memfd. In order for tmpfs objects to be usable across the Treble
boundary, they need to be declared in public policy whereas, they're
currently all declared in private policy as part of the
tmpfs_domain() macro. Remove the type declaration from the
macro, and remove tmpfs_domain() from the init_daemon_domain() macro
to avoid having to declare the *_tmpfs types for all init launched
domains. tmpfs is mostly used by apps and the media frameworks.

Bug: 122854450
Test: Boot Taimen and blueline. Watch videos, make phone calls, browse
internet, send text, install angry birds...play angry birds, keep
playing angry birds...

Change-Id: I20a47d2bb22e61b16187015c7bc7ca10accf6358
Merged-In: I20a47d2bb22e61b16187015c7bc7ca10accf6358
(cherry picked from commit e16fb9109c)
2019-01-26 17:30:41 +00:00
Chong Zhang
404e40c6c1 Use hidl memory from allocator in CAS
Make mediaextractor use hidl memory allocated by
hidl allocator, instead of constructing hidl memory
from IMemory.

bug: 112766913
bug: 111407253
Change-Id: I7902f18768005c995925bc9a7947299e9988b68a
(Needed for internal commit I39e131718ea41f9cb23177c28213ddf7b7741338)
2018-12-17 22:49:18 +00:00
Bruno Martins
7bff13f9e8 sepolicy: Grant mediaextractor access to files over all types of sdcard fs
* Account for all possible sdcard-related filesystem types and not only
   sdcardfs:

   public/file.te:108:type fuse, sdcard_type, fs_type, mlstrustedobject;
   public/file.te:109:type sdcardfs, sdcard_type, fs_type, mlstrustedobject;
   public/file.te:111:type vfat, sdcard_type, fs_type, mlstrustedobject;
   public/file.te:112:type exfat, sdcard_type, fs_type, mlstrustedobject;

Change-Id: Ic508397bf4ca66a002ada33ac3f600c17b8a1a10
2018-11-17 19:05:53 +00:00
Chong Zhang
52fb3edbb6 add media.codec.update service
Add a service in mediaswcodec to load updated codecs,
and restrict it to userdebug/eng. Reuse existing
mediaextractor_update_service since the codec update
service is identical, this avoids adding a new one
for now as we may not need the service anymore
after switching to APEX.

Bug: 111407413
Bug: 117290290

Change-Id: Ia75256f47433bd13ed819c70c1fb34ecd5d507b4
2018-10-15 21:06:53 +00:00
Nick Kralevich
5e37271df8 Introduce system_file_type
system_file_type is a new attribute used to identify files which exist
on the /system partition. It's useful for allow rules in init, which are
based off of a blacklist of writable files. Additionally, it's useful
for constructing neverallow rules to prevent regressions.

Additionally, add commented out tests which enforce that all files on
the /system partition have the system_file_type attribute. These tests
will be uncommented in a future change after all the device-specific
policies are cleaned up.

Test: Device boots and no obvious problems.
Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
2018-09-27 12:52:09 -07:00
Nick Kralevich
23c9d91b46 Start partitioning off privapp_data_file from app_data_file
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
2018-08-02 16:29:02 -07:00
Dongwon Kang
322ba93e9b Allow sdcardfs:file read access on mediaextractor
Test: pass Multimedia File Compatibility test
Test: time to start playing mid file with GPM: ~10s => ~1.2s
Bug: 76422052, Bug: 67480585, Bug: 30751071
Merged-In: I4e9824b21dab1dafdcca5824367a7fe39a37e2f7
Change-Id: I4e9824b21dab1dafdcca5824367a7fe39a37e2f7
2018-05-01 14:03:55 -07:00
Dongwon Kang
1134bd001e Allow mediaextractor to load libraries from apk_data_file
This is an experimental feature only on userdebug and eng build.

Test: play MP4 file. install & uninstall media update apk.
Bug: 67908547
Change-Id: I513cdbfda962f00079e886b7a42f9928e81f6474
2018-01-23 11:21:11 -08:00
Marco Nelissen
e2f4140cef Allow scanning extractor library directory
so we can dlopen the libraries that are there

Test: build&run

Merged-Id: Ia1fa1fd65295cffe6c8a3d31db53bd3339a71855
Change-Id: Ia1fa1fd65295cffe6c8a3d31db53bd3339a71855
2018-01-23 11:21:11 -08:00
Nick Kralevich
d329e7ebc9 mediaextractor: ensure no direct open()s
Mediaextractor should only be operating on data passed directly to it.
It shouldn't be attempting to open /data files on it's own.

Add a neverallow statement (compile time assertion + CTS test) to ensure
this is the case.

Bug: 67454004
Test: policy compiles. No runtime impact.
Change-Id: Ie94d4cb9aece7e72fbd13321f339dcf9d44d5d77
2017-10-07 15:01:24 +00:00
Nick Kralevich
64f45a2414 Suppress denials from sdcardfs (b/67454004)
These denials are expected and the code has fallbacks to handle this
case.

Test: policy compiles.
Bug: 67454004
Change-Id: I787625494d0a7c9945318428b6fd3f668a8a2564
2017-10-06 14:03:04 -07:00
Dan Cashman
91d398d802 Sync internal master and AOSP sepolicy.
Bug: 37916906
Test: Builds 'n' boots.
Change-Id: Ia1d86264446ebecc1ca79f32f11354921bc77668
Merged-In: I208ec6a864127a059fb389417a9c6b259d7474cb
2017-09-26 14:38:47 -07:00
Andy Hung
ec5f80cb61 MediaExtractor: Allow reading of app data files.
Needed to allow lower power Play Music of downloaded files.

    05-24 10:12:49.331 24025 24025 W generic : type=1400
          audit(0.0:1259): avc: denied { read } for
          path="/data/data/com.google.android.music/files/music/925.mp3"
          dev="sda35" ino=2179256 scontext=u:r:mediaextractor:s0
          tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=file
          permissive=0

Test: Play Music
Bug: 62059834

Change-Id: I97bdb1d175dba8f7a8ec6cd9084323cfcd3660bd
2017-05-24 14:18:38 -07:00
Andy Hung
f239fcf5f2 Extend mediaextractor file read permissions
Permit mediaextractor its own file source for apk and ringtone files.

Previously we fall back to the mediaserver file source.
This does not affect behavior as the fallback works fine; however,
the log messages may cause confusion.

    [73402.683908] type=1400 audit(1491338955.878:121): avc: denied { read }
    for pid=18381 comm="generic"
    path="/data/system_de/0/ringtones/alarm_alert_cache" dev="sda35"
    ino=2490374 scontext=u:r:mediaextractor:s0
    tcontext=u:object_r:ringtone_file:s0 tclass=file permissive=0
    [73402.683932] type=1400 audit(1491338955.884:122): avc: denied { read }
    for pid=18383 comm="generic"
    path="/data/system_de/0/ringtones/ringtone_cache" dev="sda35"
    ino=2490376 scontext=u:r:mediaextractor:s0
    tcontext=u:object_r:ringtone_file:s0 tclass=file permissive=0

Test: Ringtone and CTS
Bug: 37500781

Change-Id: Ie6d8e6d2b7301d00957733f173aeebbe9d0d1998
2017-04-19 10:05:38 -07:00
Andy Hung
1c98fbf8be Allow MediaExtractor to create FileSource
W Binder:538_2: type=1400 audit(0.0:9): avc: denied { getattr } for path="/data/media/0/Qtc88.mp4" dev="dm-0" ino=678654 scontext=u:r:mediaextractor:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file permissive=0

W generic : type=1400 audit(0.0:9): avc: denied { read } for path="/data/media/0/Qtc88.mp4" dev="dm-0" ino=678654 scontext=u:r:mediaextractor:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file permissive=0

Test: Photos, Play Music, Play Movies, Youtube
Bug: 29125703
Change-Id: If84ab43b934944abf4c416db751ab6694835df83
2017-03-29 17:54:49 +00:00
Josh Gao
12b4750fec Allow fallback crash dumping for seccomped processes.
Let mediacodec and mediaextractor talk directly to tombstoned to
generate tombstones/ANR traces.

Bug: http://b/35858739
Test: debuggerd -b `pidof media.codec`
Change-Id: I091be946d58907c5aa7a2fe23995597638adc896
2017-03-07 15:53:46 -08:00
Chong Zhang
7291641803 MediaCAS: adding media.cas to service
Also allow media.extractor to use media.cas for descrambling.

bug: 22804304

Change-Id: Id283b31badecb11011211a776ba9ff5167a9019d
2017-02-28 12:31:45 -08:00
Nick Kralevich
38c12828da Add documentation on neverallow rules
Better document the reasons behind the neverallow for tcp/udp sockets.

Test: policy compiles.
Change-Id: Iee386af3be6fc7495addc9300b5628d0fe61c8e9
2017-02-17 22:37:23 +00:00
William Roberts
606d2fd665 te_macros: introduce add_service() macro
Introduce the add_service() macro which wraps up add/find
permissions for the source domain with a neverallow preventing
others from adding it. Only a particular domain should
add a particular service.

Use the add_service() macro to automatically add a neverallow
that prevents other domains from adding the service.

mediadrmserver was adding services labeled mediaserver_service.
Drop the add permission as it should just need the find
permission.

Additionally, the macro adds the { add find } permission which
causes some existing neverallow's to assert. Adjust those
neverallow's so "self" can always find.

Test: compile and run on hikey and emulator. No new denials were
found, and all services, where applicable, seem to be running OK.

Change-Id: Ibbd2a5304edd5f8b877bc86852b0694732be993c
Signed-off-by: William Roberts <william.c.roberts@intel.com>
2017-01-26 04:43:16 +00:00
Ray Essick
391854000a rename mediaanalytics->mediametrics, wider access
reflect the change from "mediaanalytics" to "mediametrics"

Also incorporates a broader access to the service -- e.g. anyone.
This reflects that a number of metrics submissions come from application
space and not only from our controlled, trusted media related processes.
The metrics service (in another commit) checks on the source of any
incoming metrics data and limits what is allowed from unprivileged
clients.

Bug: 34615027
Test: clean build, service running and accessible
Change-Id: I657c343ea1faed536c3ee1940f1e7a178e813a42
2017-01-24 16:57:19 -08:00
Ray Essick
090f4a4d9f Allow access to mediaanalytics service
media framework analytics are gathered in a separate service.
define a context for this new service, allow various
media-related services and libraries to access this new service.

Bug: 30267133
Test: ran media CTS, watched for selinux denials.
Change-Id: I5aa5aaa5aa9e82465b8024f87ed32d6ba4db35ca
2016-12-03 00:06:20 +00:00
dcashman
cc39f63773 Split general policy into public and private components.
Divide policy into public and private components.  This is the first
step in splitting the policy creation for platform and non-platform
policies.  The policy in the public directory will be exported for use
in non-platform policy creation.  Backwards compatibility with it will
be achieved by converting the exported policy into attribute-based
policy when included as part of the non-platform policy and a mapping
file will be maintained to be included with the platform policy that
maps exported attributes of previous versions to the current platform
version.

Eventually we would like to create a clear interface between the
platform and non-platform device components so that the exported policy,
and the need for attributes is minimal.  For now, almost all types and
avrules are left in public.

Test: Tested by building policy and running on device.

Change-Id: Idef796c9ec169259787c3f9d8f423edf4ce27f8c
2016-10-06 13:09:06 -07:00
Renamed from mediaextractor.te (Browse further)