This adds the ability to upgrade a key and retain the
old one for rollback purposes. We delete the old key
if we boot successfully and delete the new key if we
do not.
Test: Enable checkpointing and test rolling back
between two versions
Bug: 111020314
Change-Id: I19f31a1ac06a811c0644fc956e61b5ca84e7241a
We set a property when we commit a chackpoint to signal
to anyone who wants to do post commit cleanup.
Test: Boot to homescreen and check getprop for vold.checkpoint_committed
Bug: 111020314
Change-Id: Idf35e3abf9d24eb40c6926a30a8403064c05e10a
We add the property ro.crypto.fde_sector_size to allow devices
to pass the "sector_size:<size>" argument to dm-crypt in the kernel.
We also pass "iv_large_sectors" when setting the sector size.
Using 4096-byte sectors rather than the default of 512 improves
dm-crypt performance, especially when the Adiantum encryption mode
is used.
Bug: 112010205
Test: Run on a device
Change-Id: I144ec7088a0aad3430369dc7158370d7ff3ef5d2
Adiantum is a crypto method Android is supporting for devices
which don't have AES CPU instructions. See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for more details.
We add Adiantum to our list of supported crypto types.
Bug: 112010205
Test: Tested on a device
Change-Id: Ic190a9b90fc8bc077fdc7d60c9d5ae8d8f555025
From man 2 umount:
MNT_DETACH (since Linux 2.4.11)
Perform a lazy unmount: make the mount point unavailable for new
accesses, immediately disconnect the filesystem and all filesystems
mounted below it from each other and from the mount table, and
actually perform the unmount when the mount point ceases to be busy.
So we don't need to unmount the filesystems under it one by one.
Bug: 113796163
Test: atest android.appsecurity.cts.PermissionsHostTest#testInteractiveGrant23
Change-Id: I6a0422466a9865ff6d17122505ca73d041de9d54
persist_get_max_entries() is supposed to return an unsigned integer as the
maximum number of entries but it also wrongly returns "-1" as an error
condition. Also fix an issue where an unsigned subtraction in this routine
could lead to integer underflow.
Bug: 112731440
Test: manual
Change-Id: I9672e39bef2c12156dda7806a08c52044962c178
Don't duplicate what's already in unique_fd.h
Also, code that tries to handle weird stdout condition won't work
because of cloexec; just don't try that.
My tests:
- Ensure Marlin device boots and vold_prepare_subdirs is called
successfully
- Try adb shell sm set-virtual-disk true, see that eg sgdisk output is
logged.
Bug: 26735063
Bug: 113796163
Test: details in commit
Change-Id: I5698ba0b4c8bd692a740a1bd445e677ad4815d11
Do our own fork/exec rather than using a library. This leads to
many improvements:
- unite the output recording path with the other path
- never concatenate arguments with spaces
- never use the shell
- move setexeccon after fork, so we don't need to take the lock
- general code refactor while we're there
My tests:
- Ensure Marlin device boots and vold_prepare_subdirs is called
successfully
- Try adb shell sm set-virtual-disk true, see that eg sgdisk output is
logged.
weilongping@huawei.com's tests:
- unlock a user's de and ce directory;
- connect to a OTG storage device or a sdcard and ensure the mount logic be successful
Bug: 26735063
Bug: 113796163
Test: details in commit
Change-Id: I0976413529d7cbeebf5b8649660a385f9b036f04
This library doesn't actually exist outside of ARC specific branches,
so it will break any ARC product builds.
Test: None
Change-Id: Ic73f470c93ea7d3590dc2b273624988291612344
