The kernel's default is between 4~20.
Prepare for javaland to modify the value at runtime.
It can be done via
setprop sys.sysctl.tcp_def_init_rwnd <value>
Bug: 12020135
Change-Id: Id34194b085206fd02e316401c0fbbb9eb52522d2
(cherry picked from commit 7c862c8b5e)
- init: set /proc/sys/net/unix/max_dgram_qlen to 300
- libsysutils: Add listen backlog argument to startListener
- logd: set listen backlog to 300
Change-Id: Id6d37d6c937ba2d221e76258d89c9516619caeec
mkdir /data/misc/wifi subdirectories and /data/misc/dhcp is performed
in the various device-specific init*.rc files but seems generic.
Move it to the main init.rc file.
Drop the separate chown for /data/misc/dhcp as this is handled by mkdir
built-in if the directory already exists.
Add a restorecon_recursive /data/misc/wifi/sockets.
Change-Id: I51b09c5e40946673a38732ea9f601b2d047d3b62
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
* Create a new userspace log daemon for handling logging messages.
Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>
* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
(cherry picked from commit 3e76e0a497)
Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
The kernel's default is between 4~20.
Prepare for javaland to modify the value at runtime.
It can be done via
setprop sys.sysctl.tcp_def_init_rwnd <value>
Bug: 12020135
Change-Id: Id34194b085206fd02e316401c0fbbb9eb52522d2
* Create a new userspace log daemon for handling logging messages.
Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>
* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
Set
* /sys/module/lowmemorykiller/parameters/adj
* /sys/module/lowmemorykiller/parameters/minfree
to 0220. This better indicates that these files are only intended
to be written to, never read.
Change-Id: I9ef054f032b3955e04128fc1a472a17c7b1fa792
If userdata is default encrypted, we should mount it at boot
to avoid bringing the framework up and then down unnecessarily.
Needs matching vold changes from
https://googleplex-android-review.googlesource.com/#/c/412649/
Bug: 8769627
Change-Id: I4b8276befd832cd788e15c36edfbf8f0e18d7e6b
With the following prior changes:
I77bf2a0c4c34b1feef6fdf4d6c3bd92dbf32f4a1
I698b1b2c3f00f31fbb2015edf23d33b51aa5bba1
I8dd915d9bb80067339621b905ea2b4ea0fa8d71e
it should now be safe (will correctly label all files)
and reasonably performant (will skip processing unless
file_contexts has changed since the last call) to call
restorecon_recursive /data from init.rc.
The call is placed after the setprop selinux.policy_reload 1 so that
we use any policy update under /data/security if present.
Change-Id: Ib8d9751a47c8e0238cf499fcec61898937945d9d
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
The script that writes the recovery partition after a successful
update of system needs to be made executable. This change also moves
it from /system/etc to /system/bin.
Bug: 12893978
Change-Id: I686e2392a2392515a6859a7381b735de1007b7ea
mkdir /data/misc/wifi subdirectories and /data/misc/dhcp is performed
in the various device-specific init*.rc files but seems generic.
Move it to the main init.rc file.
Drop the separate chown for /data/misc/dhcp as this is handled by mkdir
built-in if the directory already exists.
Add a restorecon_recursive /data/misc/wifi/sockets.
Change-Id: I51b09c5e40946673a38732ea9f601b2d047d3b62
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
When adbd runs as root, it should transition into the
su domain. This is needed to run the adbd and shell
domains in enforcing on userdebug / eng devices without
breaking developer workflows.
Introduce a new device_banner command line option.
Change-Id: Ib33c0dd2dd6172035230514ac84fcaed2ecf44d6
Add a service called "pre-recovery" which is normally stopped but can
be started by the system server when we want to go into recovery. It
will do any preparation needed (currently needed to handle update
packages that reside on an encrypted /data partition) and then set
sys.powerctl when it's ready to actually reboot.
Bug: 12188746
Change-Id: I894a4cb200395a0f6d7fe643ed4c2ac0a45d2052
Otherwise it will be mislabeled on upgrades with existing userdata.
Change-Id: Ibde88d5d692ead45b480bb34cfe0831baeffbf94
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
On a 64-bit system, 64-bit processes will want one path, 32-bit processes
another. The dynamic linker already provides the correct defaults for
native code, and we've coupled the VM and dynamic linker so that
LD_LIBRARY_PATH will be set correctly in any VM during startup if it's not
being manually overridden.
Change-Id: Icbffc0d451dbc242cdfb9267413d8bcac434e108
Use restorecon_recursive to label devices
where the directory and subfiles have
already been built and labeled.
Change-Id: I0dfe1e542fb153ad20adf7b2b1f1c087b4956a12
Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
If checkreqprot == 1, SELinux only checks the protection flags passed
by the application, even if the kernel internally adds PROT_EXEC for
READ_IMPLIES_EXEC personality flags. Switch to checkreqprot == 0
to check the final protection flags applied by the kernel.
Change-Id: Ic39242bbbd104fc9a1bcf2cd2ded7ce1aeadfac4
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This allows it to be permissive in userdebug/eng builds
but confined/enforcing in user builds.
Change-Id: Ie322eaa0acdbefea2de4e71ae386778c929d042b
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
The files in zoneinfo changed from system_data_file to
zoneinfo_data_file. Fixup pre-existing files.
Change-Id: Idddbd6c2ecf66cd16b057a9ff288cd586a109949
There is no longer any reason to permit system UID to set enforcing mode.
Change-Id: Ie28beed1ca2b215c71f2847e2390cee1af1713c3
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Need the set correct permission for print-tgid option or tracing of
sched can't work on user build.
Change-Id: Ia88aabe58128b911afd78f01c27f7da884ed03f0
Signed-off-by: Carton He <carton.he@marvell.com>
MS_MOVE was used when staging external storage devices, which no
longer occurs. In fact, having a writable tmpfs was masking a vold
bug around moving apps to SD cards.
Bug: 11175082
Change-Id: Ib2d7561c3a0b6fde94f651a496cb0c1f12f88d96
Add sdcard FUSE daemon flag to specify the GID required for a package
to have write access. Normally sdcard_rw, but it will be media_rw
for secondary external storage devices, so DefaultContainerService
can still clean up package directories after uninstall.
Create /mnt/media_rw which is where vold will mount raw secondary
external storage devices before wrapping them in a FUSE instance.
Bug: 10330128, 10330229
Change-Id: I4385c36fd9035cdf56892aaf7b36ef4b81f4418a
I97b3d86a69681330bba549491a2fb39df6cf20ef introduced a separate type
for the adb_keys file. Set the security context of the adb_keys file
accordingly by adding restorecon commands to init.rc.
Change-Id: I30e4d2a1ae223a03eadee58a883c79932fff59fe
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Use kernel oom_score_adj interface to make init and children unkillable.
Stop using older, deprecated oom_adj interface.
Use OOM_SCORE_ADJ_MIN to make the processes unkillable (previously the processes
were set to a very low score, but not unkillable).
Change-Id: I680965009585c2a5a580859fb946f2d0caa95d9c
The log_target parameter of android_fork_execvp_ext() is now a
bit field, and multiple targets can be set to log to multiple
places at the same time.
The new target LOG_FILE will log to a file specified by the new
parameter file_path.
Set LOG_FILE and log to a file in /dev (the only writable filesystem
avilable when e2fsck runs) when invoking e2fsck in fs_mgr.
Bug: 10021342
Change-Id: I63baf644cc8c3afccc8345df27a74203b44d0400
Before this change, FUSE lookup() would have the side effect of
creating the directory on behalf of apps. This resulted in most
directories being created just by Settings trying to measure disk
space. Instead, we're switching to have vold do directory creation
when an app doesn't have enough permissions.
Create fs_mkdirs() utility to create all parent directories in a
path as needed. Allow traversal (+x) into /storage directories.
Fix FUSE derived permissions to be case insensitive. Mark well-known
directories as .nomedia when created.
Bug: 10577808, 10330221
Change-Id: I53114f2e63ffbe6de4ba6a72d94a232523231cad
Policy reload is handled by setting the selinux.reload_policy property
and letting the init process perform the actual loading of policy into
the kernel. Thus, there should be no need for the system UID to directly
write to /sys/fs/selinux/load.
Change-Id: I240c5bb2deaee757a2e1e396e14dea9e5d9286f5
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
It's a security best practice to carry entropy across reboots.
(see "man 4 random"). Currently, entropy saving and mixing occur
in the system_server, via the EntropyMixer code. Unfortunately, the
EntropyMixer code runs fairly late in the boot process, which means
early boot doesn't have high quality entropy. This has caused security
problems in the past.
Load entropy data as soon as we can in the early boot process, so that
we can get /dev/random / /dev/urandom into a "random" state earlier.
Bug: 9983133
Change-Id: Id4a6f39e9060f30fe7497bd8f8085a9bec851e80
Changing mem cgroups permissions to only be accessible by root and system.
Bug: 10210529
Bug: 10210900
Change-Id: Ib4fff6f49b33013b3629d40ae98a5e2464571b2d
Once userdata is available and decrypted, trigger a policy reload to pick
up any policy update files stored under /data/security.
Change-Id: Ic2b3121c3395429b108c40d1d7f5a3124a5896c5
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Restarting ueventd upon policy reloads has reportedly created
stability problems for some users and could cause events to be lost.
Stop restarting ueventd and instead handle policy reloads within ueventd.
Also stops restarting installd upon policy reloads.
Change-Id: Ic7f310d69a7c420e48fbc974000cf4a5b9ab4a3b
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
ActivityManager can't directly write to extra_free_kbytes because
/proc/sys rejects all chown and chmod syscalls. Proxy the writes
through init by using the sys.sysctl.extra_free_kbytes property.
Bug: 10024467
Change-Id: I441e00478421254355fcafb252bc878166483d4c
- BOOTCLASSPATH now is derived from PRODUCT_BOOT_JARS, which is a product
configuration variable set up by the core build system.
- Moved files from the legacy ALL_PREBUILT to PRODUCT_COPY_FILES in
build/target/product/embedded.mk.
Bug: 9990214
Change-Id: I98bac36c1ca8c779dda572a0a5e0a22b7e4c4a7a
Add /system/framework/webviewchromium.jar to BOOTCLASSPATH. This jar
contains the implementation classes for the new WebView. It has been
processed with jarjar to ensure that it doesn't define any classes
outside of com.android.
Change-Id: If65913638df0088f4dd7d62a087750b90038a7fb
This commit sets up the system property which is actually used by the
Connectivity Service
(frameworks/base/services/java/com/android/server/ConnectivityService.java).
It fixes an (obsolete?) convention where the dns was affected directly by
the interface (i.e. "net.eth0.dns1=10.0.2.3"), which causes the Android
Emulator (goldfish) to ignore this value, and effectively have no DNS
resolving at all.
An immediate fix can be either add reference to net.eth%s.dns%s in the
ConnectivityService and possibly on the dhcp code as well which would be
bloated, or just stick to the apparant new convention.
I chose the latter as a one line fix which gets the job done.
Change-Id: Id4364129e9a82c1f48403068a837aca54de07944
This helps to ensure that when a new system image is installed,
old userdata policy isn't applied over the top of it.
Bug: 8841348
Change-Id: I135af32250aa62979763e775842ce0af3c8b6f9f
This forces a policy reload + fixcon to deal with dynamically
delivered policy changing labels on device nodes.
It's implemented as a new keyword in init.
Bug: 8702843
Change-Id: I803cf1ecf6ff8318ce25dcc5cda4f292adc9738c
DBUS had been needed by bluetooth bluz stack. It is not needed after
we replaced bluez stack with bluedroid stack.
bug 6872904
Change-Id: I3fa41c1dd4ac80bc679d5950b3b20c7f6d12265f
Move the responsibility for rebooting the system from the
reboot command to init. Init is in a better position to take
actions to bring the system down cleanly, including making sure
filesystems are mounted read-only.
The only UIDs which can perform an init triggered reboot are
root, system, and shell.
Modify the reboot command so that it calls into init to perform
the reboot. The reboot command no longer requires CAP_SYS_BOOT.
Remove the -n reboot option and code which supports it. Anyone needing
to do an unclean shutdown can just do a 'echo c > /proc/sysrq-trigger'.
Modify adb so that it calls into init to perform a shutdown.
Bug: 8646621
Change-Id: I84c0513acb549720cb0e8c9fcbda0050f5c396f5
Adding a new location for policy files under
/data, the new location is /data/security. The
new location is used before attempting to use
any other location.
This requires a new directory to be created by
the init script and an update to the location of
the property_contexts file for property service.
Change-Id: I955a722ac3e51fa6c1b97201b8bdef3f601cf09d
Adding a new location for policy files under
/data, the new location is /data/security. The
new location is used before attempting to use
any other location.
This requires a new directory to be created by
the init script and an update to the location of
the property_contexts file for property service.
Change-Id: I955a722ac3e51fa6c1b97201b8bdef3f601cf09d
goldfish is ported to linux-3.4 and have capability to run atrace.
But can't run atrace yet because debugfs is not mounted on boot time.
Change-Id: I0ce23bde3b8d1b2a88d4238272123e3ab8cb6970
Signed-off-by: Young-Ho Cha <ganadist@gmail.com>
Allow userspace programs to create IPPROTO_ICMP sockets.
This socket type allows an unprivileged program to safely
send ICMP_ECHO messages and receive the corresponding
ICMP_ECHOREPLY messages, without relying on raw sockets or
setuid programs.
Please see http://lwn.net/Articles/443051/ for details.
In particular, this allows us to use a version of ping
which doesn't have any capabilities
(https://android-review.googlesource.com/52072).
In addition, this allows us to safely implement an IPv4 ICMP
based version of InetAddress.isReachable()
(https://code.google.com/p/android/issues/detail?id=20106)
Change-Id: I876718151efa8219c4f34f573e35e21256fe2316
This can cause init to be stucked in a loop in very rare cases where
persist.sys.usb.config is set to "none" (because the "setprop
sys.usb.config none" action is added twice to the action list).
The original issue on encrypted devices has been fixed differently
by change # I350c5aab986f8ca86b95f316398d03012553e581
This reverts commit 80828af3de.
Change-Id: Id0a7af8dd861c8d10b80a13b540c8a339b432007
This will help get rid of android_aid.h in the kernel.
The group of the proc entries will be used in place of the default
values picked up by the xt_qtaguid netfilter module
(AID_NET_BW_STATS, AID_NET_BW_ACCT).
This change has no effect until the matching kernel changes are submitted.
Change-Id: I3c177e7b5caf9c59300eba6bd4a976634b333674
On encrypted devices, persistent properties are loaded after the device
is decrypted. To properly change sys.usb.config to its persistent value,
it must first be set to "none" and then to ${persist.sys.usb.config}.
Bug: 7678835
Change-Id: I4f91245cedc04e3178ce9cee21390f5b657733c9
This is necessary for some HWC hals to be able to communicate with
secure side to grant protected access to hardware owned by the
hwc. This is necessary on some architectures to grant access to
secure buffers to overlay/csc hardware
Change-Id: I4e4becba5b4a80310ce8932edea5d0d046fa9b00
Signed-off-by: Dima Zavin <dima@android.com>
When vold mounts things in /mnt/secure/staging, it expects to MS_MOVE
those mountpoints when vetting is finished. However, the kernel
doesn't allow MS_MOVE when the source is shared to child namespaces.
To work around this, create a tmpfs at /mnt/secure and mark it as
private (not shared). Verified that vold can now successfully move
from the staging area.
Bug: 7094858
Change-Id: I5e05b1005c63efa277935c9bbd18cbf3ffdd47a3
Define /storage as top-level concept, so that we enforce permissions
uniformly. Moves external storage paths from headers to per-device
environment variables. Added missing mount flags, and we no longer
have adb-specific external storage.
Bug: 6925012
Change-Id: Ic7ca953be2f552d3f0ec9e69f89fef751daa1b29
Also remove mount() from adb, since it can come online long before
data partition is ready. Set EXTERNAL_STORAGE environment variable
to point to owner for backwards compatibility.
Bug: 7005701
Change-Id: I63444f6636624eb7ad89f053daa289663424639e
Remount rootfs as recursively shared, so that mount changes are
propagated into child namespaces. Mount external storage for access
from adb.
Clean multi-user dependencies for use in Dalvik. Also define
external storage paths.
Bug: 6925012
Change-Id: I375de581a63f4f36667894c56a34a9dd45361e8f
JP Abgrall