init should register native services with lmkd so that they can be killed
when necessary. Allow init to communicate with lmkd over dedicated socket
the same way AMS does. Allow lmkd to kill and manipulate native processes
that were registered with lmkd.
Bug: 129011369
Test: boot and verify native service registration
Test: verify lmkd can kill registered native processes using lmkd_unit_test
Change-Id: Idfc814bd08115c548e97f11a6bdb006790cbb4ed
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Only allow apps targetting < Q and ephemeral apps to open /dev/ashmem.
Ephemeral apps are not distinguishable based on target API. So allow
ephemeral_app to open /dev/ashmem for compatibility reasons.
For sake of simplicity, allow all domains /dev/ashmem permissions other
than "open". Reason being that once we can remove "open" access
everywhere, we can remove the device altogether along with other
permission.
Bug: 134434505
Test: boot crosshatch; browse internet, take picture;
no ashmem_device denials
Change-Id: Ie2464c23d799550722580a21b4f6f344983b43ba
Only allow apps targetting < Q and ephemeral apps to open /dev/ashmem.
Ephemeral apps are not distinguishable based on target API. So allow
ephemeral_app to open /dev/ashmem for compatibility reasons.
For sake of simplicity, allow all domains /dev/ashmem permissions other
than "open". Reason being that once we can remove "open" access
everywhere, we can remove the device altogether along with other
permission.
Bug: 134434505
Test: boot crosshatch; browse internet, take picture;
no ashmem_device denials
Change-Id: Ib4dddc47fcafb2697795538cdf055f305fa77799
The 'stdio_to_kmsg' option will print stdout and stderr to
kmsg_debug. This requires init to be able to open kmsg_debug.
Test: services with stdio_to_kmsg can print to kmsg_debug
Change-Id: I63f0af8f079f7327c1224aa9e46f19d6549d875b
The use of sensitive environment variables, such as LD_PRELOAD, is disallowed
when init is executing other binaries. The use of LD_PRELOAD for init spawned
services is generally considered a no-no, as it injects libraries which the
binary was not expecting. This is especially problematic for APEXes. The use
of LD_PRELOAD via APEXes is a layering violation, and inappropriately loads
code into a process which wasn't expecting that code, with potentially
unexpected side effects.
Test: compiles
Bug: 140789528
Change-Id: Ia781ec7318e700cddfd52df97c504b771f413504
Give /data itself a different label to its contents, to ensure that
only init creates files and directories there.
This change originally landed as aosp/1106014 and was reverted in
aosp/1116238 to fix b/140402208. aosp/1116298 fixes the underlying
problem, and with that we can re-land this change.
Bug: 139190159
Bug: 140402208
Test: aosp boots, logs look good
Change-Id: I1a366c577a0fff307ca366a6844231bcf8afe3bf
Remove everyone's ability to read /proc/sys/vm/overcommit_memory.
Android's jemalloc implementation no longer uses this file.
init.te had multiple rules which allowed writing to this file. Get rid of
the duplicate rule.
Bug: 140736217
Test: compiles and boots
Test: bypass setup wizard and start the browser, browse the web
Change-Id: I5a2d5f450f5dde5dd55a0cedd7fbd55a6ac0beed
Give /data itself a different label to its contents, to ensure that
only init creates files and directories there.
Bug: 139190159
Test: aosp boots, logs look good
Change-Id: I3ee654a928bdab3f5d435ab6ac24040d9bdd9abe
This is required for Idf851b3a42910e0ce8fdd75daea1cce91dd1aa98
And is part of enabling upcoming platform changes that are
described in the bug linked below.
Bug: 135341433
Test: m
Change-Id: I1d842fcfae3740d51e7cb2050decf1f83543af7e
There was some plan to use binder from init, but it was abandoned. As
ServiceManager was recently re-written in C++, and as part of a
continued effort to reduce large dependencies in init and make sure it
is reliable, I'm removing these here.
Bug: 135768100
Test: N/A
Change-Id: I12b57709399c87ee25f689b601572b19abf7fb00
/system/apex/com.android.runtime is labeled as runtime_apex_dir
and init is allowed to mount on it.
When TARGET_FLATTEN_APEX is true (= ro.apex.updatable is unset or set to
false), apexd is not used to activate the built-in flattened APEXes.
Init simply bind-mounts /system/apex to /apex.
However, there is a special case here. The runtime APEX is installed as
either /system/apex/com.android.runtime.debug or
/system/apex/com.android.runtime.release, whereas it should be activated
on /apex/com.android.runtime - without the .debug or .release suffix.
To handle that case, the build system creates an empty directory
/system/apex/com.android.runtime and the .debug or .release directory
is bind-mounted to the empty directory by init at runtime.
Bug: 132413565
Test: marlin is bootable
Merged-In: I3fde5ff831429723fecd1fa5c10e44f636a63f09
Change-Id: I3fde5ff831429723fecd1fa5c10e44f636a63f09
(cherry picked from commit 99902a175b)
Fixes the following denial during boot:
[ 1.358156] selinux: SELinux: Could not set context for
/dev/block/platform/soc/1d84000.ufshc/by-name/super: Permission denied\x0a
[ 1.358275] audit: type=1400 audit(951562.676:7):
avc: denied { relabelto } for pid=1 comm="init" name="super"
dev="tmpfs" ino=17657 scontext=u:r:init:s0 tcontext=u:object_r:super_block_device:s0
tclass=lnk_file permissive=0
Bug: 124410201
Test: make
Change-Id: Ib6752b8a6ae4211ba8c0a7417295b8144a2fed67
"This symlink was suppose to have been removed in the Gingerbread
time frame, but lives on."
https://android.googlesource.com/platform/system/core/+/d2f0a2c%5E!/
Apps targeting R+ must NOT use that symlink.
For older apps we allow core init.rc to create
/mnt/sdcard -> /storage/self/primary symlink.
Bug: 129497117
Test: boot device, /mnt/sdcard still around.
Change-Id: I6ecd1928c0f598792d9badbf6616e3acc0450b0d
The bootstrap bionic (/system/lib/bootstrap/*) are only to the early
processes that are executed before the bionic libraries become available
via the runtime APEX. Allowing them to other processes is not needed and
sometimes causes a problem like b/123183824.
Bug: 123183824
Test: device boots to the UI
Test: atest CtsJniTestCases:android.jni.cts.JniStaticTest#test_linker_namespaces
Change-Id: Id7bba2e8ed1c9faf6aa85dbbdd89add04826b160
This allows init to tune some f2fs knobs like cp_interval.
Bug: 127511432
Change-Id: I9353444578cb47bc7965cd7b068954a8270c5391
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Need ability for system components to access psi memory pressure file.
Add required permissions for system_server and init to access
/proc/pressure/memory file.
Bug: 129476847
Test: system_server can read /proc/pressure/memory
Change-Id: I10ce4f4fe0e3618fa77539e93246d0aae933082c
Signed-off-by: Tim Murray <timmurray@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
fsverity_init is a new shell script that uses mini-keyctl for the actual
key loading. Given the plan to implement keyctl in toybox, we label
mini-keyctl as u:object_r:toolbox_exec:s0.
This gives us two benefits:
- Better compatibility to keyctl(1), which doesn't have "dadd"
- Pave the way to specify key's security labels, since keyctl(1)
doesn't support, and we want to avoid adding incompatible option.
Test: Boot without SELinux denial
Test: After boot, see the key in /product loaded
Bug: 128607724
Change-Id: Iebd7c9b3c7aa99ad56f74f557700fd85ec58e9d0
These denials occur on boot when android_get_control_file also
changes from readlink() to realpath(), because realpath() will
lstat() the given path.
Some other domains (fastbootd, update_engine, etc.) also uses
libcutils to write to kernel log, where android_get_control_file()
is invoked, hence getattr is added to them as well.
04-28 06:15:22.290 618 618 I auditd : type=1400 audit(0.0:4): avc: denied { getattr } for comm="logd" path="/dev/kmsg" dev="tmpfs" ino=20917 scontext=u:r:logd:s0 tcontext=u:object_r:kmsg_device:s0 tclass=chr_file permissive=0
03-20 19:52:23.431 900 900 I auditd : type=1400 audit(0.0:7): avc: denied { getattr } for comm="android.hardwar" path="/dev/kmsg" dev="tmpfs" ino=20917 scontext=u:r:hal_health_default:s0 tcontext=u:object_r:kmsg_device:s0 tclass=chr_file permissive=0
...
03-20 22:40:42.316 1 1 W init : type=1400 audit(0.0:33): avc: denied { getattr } for path="/dev/kmsg" dev="tmpfs" ino=21999 scontext=u:r:init:s0 tcontext=u:object_r:kmsg_device:s0 tclass=chr_file permissive=0
Test: no denials related to these
Change-Id: I5263dd6b64c06fb092f3461858f57a1a09107429
This is a partial revert of https://android-review.googlesource.com/c/platform/system/sepolicy/+/891474
The mount points at /bionic are gone. Therefore, init and
otapreopt_chroot do not need to bionic-mount bionic libraries.
Corresponding policies are removed.
Bug: 125549215
Bug: 113373927
Bug: 120266448
Test: m; device boots
Change-Id: I9d9d7ec204315fb5b66beec4e6a3c529bd827590
This CL add new label for files created by fsverity.
Bug: 112038861
Test: ls -Z /proc/sys/fs/verity/require_signatures.
Change-Id: I8e49ad9a43282bc608449eb0db4ea78617c4ee9a
