e2fsck and fsck.f2fs must run in the fsck domain. Add call to
setexeccon() to tell selinux to run in the fsck domain on exec.
Addresses:
avc: denied { execute_no_trans } for path="/system/bin/e2fsck" dev="mmcblk0p41" ino=241 scontext=u:r:vold:s0 tcontext=u:object_r:fsck_exec:s0 tclass=file
Bug: 26872236
Change-Id: Ib2a583aeefc667f8aa67532e0ac0ff9619b65461
am: 9b5db9bcbe
* commit '9b5db9bcbe333b677ca18d2c1c398c8751cd0fd2':
cryptfs: Skip to encrtypt unused blocks into a block group which uninitialize block bitmap .
Change encryption to happen after a reboot, not before. This
removes the problem whereby if data cannot be unmounted, we cannot
encrypt.
Bug: 25426629
Change-Id: I25d610204234ed8254330d001eb965e6e87a2fe9
The function PKCS5_PBKDF2_HMAC_SHA1 can fail for a number of reasons and
thus its return value should be checked and handled.
Change-Id: I0f0d8f74b58940a34df16b88434a085760822075
This set of changes adds the screen that offers this conversion,
and the plumbing so the option is only available on suitable
devices.
It does not implement the conversion mechanism.
Change-Id: I801199c37b03436045d40bf8840a8746daf94d27
Sadly setexeccon() is process global, so we need to carefully ensure
that all exec() are mutually exclusive to avoid transitioning into
unwanted domains. Also, because we have several threads floating
around, we need to guard all our FDs with O_CLOEXEC.
Format all newly created volumes immediately after partitioning,
but silence all events emitted from those volumes to prevent the
framework from getting all excited. Unify all notify events under a
single codepath to make them easy to silence.
Sent SIGINT before escalating to SIGTERM when unmounting.
Bug: 19993667
Change-Id: Idc6c806afc7919a004a93e2240b42884f6b52d6b
This adds support for private volumes which is just a filesystem
wrapped in a dm-crypt layer. For now we're using the exact same
configuration as internal encryption (aes-cbc-essiv:sha256), but we
don't store any key material on the removable media. Instead, we
store the key on internal storage, and use the GPT partition GUID
to identify which key should be used.
This means that private external storage is effectively as secure as
the internal storage of the device. That is, if the internal storage
is encrypted, then our external storage key is also encrypted.
When partitioning disks, we now support a "private" mode which has
a PrivateVolume partition, and a currently unused 16MB metadata
partition reserved for future use. It also supports a "mixed" mode
which creates both a PublicVolume and PrivateVolume on the same
disk. Mixed mode is currently experimental.
For now, just add ext4 support to PrivateVolume; we'll look at f2fs
in a future change. Add VolumeBase lifecycle for setting up crypto
mappings, and extract blkid logic into shared method. Sprinkle some
more "static" around the cryptfs code to improve invariants.
Bug: 19993667
Change-Id: Ibd1df6250735b706959a1eb9d9f7219ea85912a0
Wire up new Disk and VolumeBase objects and events to start replacing
older DirectVolume code. Use filesystem UUID as visible PublicVolume
name to be more deterministic.
When starting, create DiskSource instances based on fstab, and watch
for kernel devices to appear. Turn matching devices into Disk
objects, scan for partitions, and create any relevant VolumeBase
objects. Broadcast all of these events towards userspace so the
framework can decide what to mount.
Keep track of the primary VolumeBase, and update the new per-user
/storage/self/primary symlink for all started users.
Provide a reset command that framework uses to start from a known
state when runtime is restarted. When vold is unexpectedly killed,
try recovering by unmounting everything under /mnt and /storage
before moving forward.
Remove UMS sharing support for now, since no current devices support
it; MTP is the recommended solution going forward because it offers
better multi-user support.
Switch killProcessesWithOpenFiles() to directly take signal. Fix
one SOCK_CLOEXEC bug, but SELinux says there are more lurking.
Bug: 19993667
Change-Id: I2dad1303aa4667ec14c52f774e2a28b3c1c1ff6d
ioctl(BLKGETSIZE) expects unsigned long
(8 bytes on 64 bit environment).
This is fixing fails in android.os.storage.StorageManagerIntegrationTest
(in FrameworkCoreTests).
To verify, install FrameworksCoreTests.apk and do:
adb shell am instrument -r -w -e class android.os.storage.\
StorageManagerIntegrationTest#testMountSingleEncryptedObb \
com.android.frameworks.coretests/android.test.InstrumentationTestRunner
Change-Id: Ib6d5c7490c02521c93f107c35ad0aac49f6a3f1a
Redirect all crypto calls to e4crypt equivalents if file level encryption
detected. Note this change implements only the ones needed for minimal
functionality.
Requires matching change:
https://googleplex-android-review.git.corp.google.com/#/c/642778/
Change-Id: I622d1a91704de4b3ab655486e6d38cd6718e6016
Redirect all crypto calls to e4crypt equivalents if file level encryption
detected. Note this change implements only the ones needed for minimal
functionality.
Requires matching change:
https://googleplex-android-review.git.corp.google.com/#/c/642778/
Change-Id: I622d1a91704de4b3ab655486e6d38cd6718e6016
This is to accomodate the new keymaster1_device_t, which has an entirely
different interface.
Soon I'll provide a libkeymaster which provides a unified (and nicer)
interface for dealing with both v0 and v1 keymaster implementations
using a v1 keymaster API. For now this change is just so that vold will
build and run.
Change-Id: I5c54282c12d1c4b8b22ed4929b6e6c724a94ede4
This is to accomodate the new keymaster1_device_t, which has an entirely
different interface.
Soon I'll provide a libkeymaster which provides a unified (and nicer)
interface for dealing with both v0 and v1 keymaster implementations
using a v1 keymaster API. For now this change is just so that vold will
build and run.
Change-Id: I5c54282c12d1c4b8b22ed4929b6e6c724a94ede4
Changing the device lock (even from swipe to none) will cause the
master key to be re-encrypted.
If at that point keymaster fails (e.g. due to an incompatible keymaster update)
cryptfs will write back the now-incomplete crypto metadata.
Upon next reboot, userdata can't be decrypted.
Now we don't bother writing on keymaster failure.
Bug: 19301883
Change-Id: I2b9a1278f8b4d333ac8d567e17e2263005e99409
This reverts commit 6a69cfc411.
The original fix seems to have led to boot failures in QA. Rather than
risk shipping, revert the change. Bug 18764230 reopened.
Requires change
https://googleplex-android-review.git.corp.google.com/#/c/629950/
Bug: 19278390
Bug: 19199624
Change-Id: Ia858c4db0abb917f9364ec8048f59ca4fb48e233
The strncpy operation does not write a 0 termination
if the name is larger than the target buffer.
Ensure that zero termination is always written using
safe strlcpy function.
Change-Id: Idb68cdff7cd1a860c1dfac7494fa99f3d382cb91
