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)
/apex/apex-info-file.xml is labeled as apex_info_file. It is
created/written by apexd once by apexd, and can be read by zygote and
system_server. The content of the file is essentially the same as the
return value of getAllPackages() call to apexd.
Bug: 154823184
Test: m
Merged-In: Ic6af79ddebf465b389d9dcb5fd569d3a786423b2
(cherry picked from commit f1de4c02cc)
Change-Id: Ic6af79ddebf465b389d9dcb5fd569d3a786423b2
Three properties are declared as vendor-init-settable:
ro.media.xml_variant.codecs
ro.media.xml_variant.codecs_performance
ro.media.xml_variant.profiles
media_codecs.xml can now be named
media_codecs${ro.media.xml_variant.codecs}.xml
media_codecs_performance.xml can now be named
media_codecs_performance${ro.media.xml_variant.codecs_performance}.xml
media_profiles_V1_0 can now be named
media_profiles${ro.media.xml_variant.profiles}.xml
Test: Rename "media_codecs.xml" to "media_codecs_test.xml",
set ro.media.xml_variant.codecs to "_test", then
call "stagefright -i".
Test: Rename "media_codecs_performance.xml" to
"media_codecs_performance_test.xml",
set ro.media.xml_variant.codecs_performance to "_test", then
run android.media.cts.VideoDecoderPerfTest.
Test: Rename "media_profiles_V1_0.xml" to "media_profiles_test.xml",
set ro.media.xml_variant.profiles to "_test", then
run vts_mediaProfiles_validate_test.
Bug: 142102953
Change-Id: I407a0a327fcc8e799bb4079b11048a497565be48
/mnt/pass_through was introduced to allow the FUSE daemon unrestricted
access to the lower filesystem (or sdcardfs).
At zygote fork time, the FUSE daemon will have /mnt/pass_through/0
bind mounted to /storage instead of /mnt/user/0. To keep /sdcard
(symlink to /storage/self/primary) paths working, we create a
'self' directory with an additional 'primary' symlink to
/mnt/pass_through/0/emulated/0 which is a FUSE mount point.
The following components need varying sepolicy privileges:
Vold: Creates the self/primary symlink and mounts the lower filesystem
on /mnt/pass_through/0/emulated. So needs create_dir and mount access
+ create_file access for the symlink
zygote: In case zygote starts an app before vold sets up the paths.
This is unlikely but can happen if the FUSE daemon (a zygote forked app)
is started before system_server completes vold mounts.
Same sepolicy requirements as vold
installd: Needs to clear/destroy app data using lower filesystem
mounted on /mnt/pass_through so needs read_dir access to walk
/mnt/pass_through
priv_app (FUSE daemon): Needs to server content from the lower
filesystem mounted on /mnt/pass_through so needs read_dir access to
walk /mnt/pass_through
Bug: 135341433
Test: adb shell ls /mnt/pass_through/0/self/primary
Change-Id: I16e35b9007c2143282600c56adbc9468a1b7f240
System_server will listen on incoming packets from zygotes.
Bug: 136036078
Test: atest CtsAppExitTestCases:ActivityManagerAppExitInfoTest
Change-Id: I42feaa317615b90c5277cd82191e677548888a71
Also, allow zygote to scan dirs in /mnt/expand and relabel.
Test: No denials at boot
Test: No denials seen when creating mounts
Bug: 143937733
Change-Id: I86e77d27f5e9fb2f5852f787c7e5d9179c7404aa
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
This reverts commit 9f02b30a72.
This is no longer needed, because we never shipped app storage
sandboxes.
Bug: 130812417
Test: builds
Change-Id: Ia1f51db4904742d2ef15222f2350c67af0dd4a28
zygote now allocates JIT memory using libcutils API (aosp/1135101)
instead of going to /dev/ashmem directly, which requires execute
permissions to ashmem_libcutils_device.
Bug: 134434505
Change-Id: I3b5eeac1ec06d8d70da327743174ca83eec6b41c
Test: boot crosshatch
zygote now allocates JIT memory using libcutils API (aosp/1135101)
instead of going to /dev/ashmem directly, which requires execute
permissions to ashmem_libcutils_device.
Bug: 134434505
Test: boot crosshatch
Change-Id: I0a54d64bd4656fafd2f03701d7828cfa94c08f04
Ashmem FD selinux labels have recently been changed (aosp/1127917) from
"ashmemd" to the label of the whichever process opens the fd, which
resulted in the following denial:
avc: denied { use } for
path="/dev/ashmemf5dc2dbf-d1e7-457e-b694-93c84704135e" dev="tmpfs"
ino=18972 ioctlcmd=0x7704 scontext=u:r:zygote:s0
tcontext=u:r:system_server:s0 tclass=fd permissive=1
Test: m selinux_policy
Change-Id: I4880420014bda21cd4f83e3d6190c3cfaa76822f
This is so that zygote can create the JIT cache with memfd_create
(or ashmem when memfd is not available).
Test: boot
Bug: 119800099
Change-Id: I88f1f6b1c930a8d22985b306a238f60b4af59f9c
During preloading resources, zygote scans the overlay directories of
supported partitions looking for android RROs to apply statically. Zygote
currently is allowed to read overlays in /oem/overlay, but zygote does
not have the search permission to be able to scan /oem.
Without this patch, this denial is logged:
04-04 14:57:40.136 876 876 I auditd : type=1400 audit(0.0:9):
avc: denied { search } for comm="main" name="oem" dev="dm-3" ino=46
scontext=u:r:zygote:s0 tcontext=u:object_r:oemfs:s0 tclass=dir
permissive=0
Bug: 121033532
Test: booting without denials and stat oem succeeds
Change-Id: I661f3e0aff7ec3513870d08ddc122fc359b8f995
This change allows those daemons of the audio and Bluetooth which
include HALs to access the bluetooth_audio_hal_prop. This property is
used to force disable the new BluetoothAudio HAL.
- persist.bluetooth.bluetooth_audio_hal.disabled
Bug: 128825244
Test: audio HAL can access the property
Change-Id: I87a8ba57cfbcd7d3e4548aa96bc915d0cc6b2b74
Allow the zygote to pick up integrity-checked boot classpath
artifacts from the dalvik cache.
Bug: 125474642
Test: m
Test: manual
Merged-In: I45d760c981c55a52bd0b22c79a9cba4868a09528
Change-Id: I45d760c981c55a52bd0b22c79a9cba4868a09528
sdcardfs will automatically try to create .nomedia file
under Android/{data,obb} and this is being attributed
to whoever is trying to create Android/{data,obb} dirs.
Earlier this is used to done from app context but now
zygote handles the creation of these dirs.
Bug: 124345887
Test: manual
Change-Id: I96feada2f5edff2ece2586a532b069a58a36dd3b
Some runtime properties require reboots and should be in the
native_boot namespace instead of native.
Bug: 120794191
Bug: 123524494
Test: set a property and ensure it can be read in AndroidRuntime.cpp
Change-Id: I1d1e984dcba26dd04d34a7d30fc63e1b75a8a311
In the kernel, sdcardfs wraps the contents of /data/media, which has
the label "media_rw_data_file". As part of this wrapping, it should
change the label to be "sdcardfs", but we've seen evidence that this
isn't always happening.
To temporarily unblock dogfooding while we continue investigating,
relax rules to allow Zygote to mount from either "sdcardfs" or
"media_rw_data_file", which as described above, are equivalant.
Bug: 123533205
Test: manual
Change-Id: Id633337095c0a3b69d9b8652bcc3327810339cf3
The convention for native properties is to use _native suffix.
Bug: 123524494
Bug: 120794191
Test: set a property and ensure it can be read in AndroidRuntime.cpp
Change-Id: I69feab9be78f24d812b8f953d3ec06a5d8d18f15
Bug: 120794191
Bug: 123524494
Test: set a property and ensure it can be read in AndroidRuntime.cpp
Change-Id: Ib37102f35e9987d3d9baff83c45571a5d632ad50
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
Create a transient SELinux domain where system_server can perform
certain JIT setup. The idea is that system_server will start in the
system_server_startup domain, setup certain JIT pages, then perform a
one-way transition into the system_server domain. From that point,
further JITing operations are disallowed.
Bug: 62356545
Test: device boots, no permission errors
Change-Id: Ic55b2cc5aba420ebcf62736622e08881a4779004
Remove blanket coredomain access to same_process_hal_file in favor of
granular access. This change takes into account audits from go/sedenials
(our internal dogfood program)
Bug: 37211678
Test: m selinux_policy
Change-Id: I5634fb65c72d13007e40c131a600585a05b8c4b5
We plan on migrating MetricsLogger to write to statsd socket. So we need to
allow zygote, which writes to logd using MetricsLogger, to also be able
to statsd. We also re-locate some sepolicies to write to statsd socket
in their respective policy definitions.
Bug: 110537511
Test: no failure/violations observed
Change-Id: I21fd352a25ed946516f9a45ac3b5e9bf97b059bc
kernel commit 2a4c22426955d4fc04069811997b7390c0fb858e (fs: switch order
of CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH checks) swapped the order of
dac_override and dac_read_search checks. Domains that have dac_override
will now generate spurious denials for dac_read_search unless they also
have that permission. Since dac_override is a strict superset of
dac_read_search, grant dac_read_search to all domains that already have
dac_override to get rid of the denials.
Bug: 114280985
Bug: crbug.com/877588
Test: Booted on a device running 4.14.
Change-Id: I5c1c136b775cceeb7f170e139e8d4279e73267a4
commit 9b2e0cbeea added a new
self:global_capability_class_set macro that covers both self:capability
and self:cap_userns. Apply the new macro to various self:capability
references that have cropped up since then.
Bug: 112307595
Test: policy diff shows new rules are all cap_userns
Change-Id: I3eb38ef07532a8e693fd549dfdbc4a6df5329609
Clatd and zygote
are all overprivileged
as is storaged
Test: Verify no "granted" messages from dogfooders. Build flash
aosp_taimen-userdebug. Verify no denials.
Change-Id: I735adcffed553962ad12072716a7200883930dcf
Files in /proc/net leak information. This change is the first step in
determining which files apps may use, whitelisting benign access, and
otherwise removing access while providing safe alternative APIs.
To that end, this change:
* Introduces the proc_net_type attribute which will assigned to any
new SELinux types in /proc/net to avoid removing access to privileged
processes. These processes may be evaluated later, but are lower
priority than apps.
* Labels /proc/net/{tcp,tcp6,udp,udp6} as proc_net_vpn due to existing
use by VPN apps. This may be replaced by an alternative API.
* Audits all other proc/net access for apps.
* Audits proc/net access for other processes which are currently
granted broad read access to /proc/net but should not be including
storaged, zygote, clatd, logd, preopt2cachename and vold.
Bug: 9496886
Bug: 68016944
Test: Boot Taimen-userdebug. On both wifi and cellular: stream youtube
navigate maps, send text message, make voice call, make video call.
Verify no avc "granted" messages in the logs.
Test: A few VPN apps including "VPN Monster", "Turbo VPN", and
"Freighter". Verify no logspam with the current setup.
Test: atest CtsNativeNetTestCases
Test: atest netd_integration_test
Test: atest QtaguidPermissionTest
Test: atest FileSystemPermissionTest
Change-Id: I7e49f796a25cf68bc698c6c9206e24af3ae11457
Merged-In: I7e49f796a25cf68bc698c6c9206e24af3ae11457
(cherry picked from commit 087318957f)
Values of the following properties are set by SoC vendors on some
devices including Pixels.
- persist.bluetooth.a2dp_offload.cap
- persist.bluetooth.a2dp_offload.enable
- persist.vendor.bluetooth.a2dp_offload.enable
- ro.bt.bdaddr_path
- wlan.driver.status
So they should be whitelisted for compatibility.
Bug: 77633703
Test: succeeded building and tested with Pixels
Change-Id: Ib2b81bcc1fd70ddd571dc7fb2b923b576d62b7d5
cgroupfs doesn't allow files to be created, so this can't be needed.
Also remove redundant neverallow and dontaudit rules. These are now
more broadly handled by domain.te.
Bug: 74182216
Test: Denials remain silenced.
Change-Id: If7eb0e59f567695d987272a2fd36dbc251516e9f
(cherry picked from commit 8e8c109350)
