The fuzzer name "dm_table_fuzzer" was too generic. Looking forward to an
extension to host tests where each fuzzer name should be considered a
unique identifier, change the fuzzer name to, "dm_linear_table_fuzzer".
Fix also the syntax of sizeof(array) declaration.
Bug: none
Test: dm_linear_table_fuzzer
Change-Id: Iaa0ee9a0eb1352f0c5269b07198d0a34d8fb3254
Signed-off-by: Alessio Balsini <balsini@google.com>
This patch translates UpdateState states into a MergeStatus from
IBootControl 1.1, and asks the HAL to store it. Unfortunately this patch
has to work around a few issues.
The first issue is that Soong doesn't allow including only the headers
from a HAL. The second issue is that entraining the headers requires
linking to libraries that would otherwise not be needed in init.
To address this, we now have three ways of linking to libsnapshot:
1. libsnapshot - Has access to gsid and HALs.
2. libsnapshot_nobinder - Has access to HALs, but not binder (for
recovery).
3. libsnapshot_init - Does not use binder or HALs.
The HAL code is #ifdef'd behind LIBSNAPSHOT_USE_HAL and we make use of
forward declarations and dependency injection to minimize its spread.
Bug: 139154945
Test: libsnapshot_test gtest
Change-Id: I21ffd8a79a43d0589f2f71f346ac1b019584a183
On some devices the previous implementation of GetHash() was failing at
reading files, returning "Bad file descriptor" error.
Using ReadFileToString() that seems to have fixed the issue.
Test: libsnapshot_test
Change-Id: Ie3598d8bad5b3db1cf816c120e6922a066aa2743
Signed-off-by: Alessio Balsini <balsini@google.com>
The Linux kernel's dm-snapshot relies on a COW device to keep trace of
all the modified sectors.
The COW device has a precise structure, which allows to compute its
space requirement in advance, as a function of:
- sector size;
- chunk size;
- list of modifications applied to the snapshot device.
Create a class that implements the COW device space occupancy given this
information.
Bug: 140835698
Test: libsnapshot_test
Change-Id: I50e3815741ee689d14fc3611532ff9d3b3e0e879
Signed-off-by: Alessio Balsini <balsini@google.com>
When applying a downgrade package on a Virtual A/B device
(to a non-Virtual A/B build), source slot partitions must
be kept in the metadata.
Test: liblp_test
Bug: 138258570
Change-Id: I87afe68bcfa768bdc015f5966b593758b856c741
The chunk size of the snapshot should be kept consistent among different
files.
Move it to libsnapshot/utility.h to improve its visibility.
Change-Id: I1cae6530a07c88f3a0091ca7d8bb2eb590a6710f
Bug: 140835698
Test: m
Signed-off-by: Alessio Balsini <balsini@google.com>
C++20 will require members in a designated initializer to be in order
unlike C99.
Bug: 139945549
Test: mm
Change-Id: I8804f7dd5cba1035ac7a2979a47b661d722f664a
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Create a fuzzer that fuzzes the parameters used for the creation
of dm-linear tables through libdm.
This fuzzer is based on libdm::DmLinear.
Bug: none
Test: dm_linear_fuzzer
Change-Id: I052144c6eb0db4fa6a37b5e54fbcb8193e5dc88f
Signed-off-by: Alessio Balsini <balsini@google.com>
TempDevice is useful class for tests, move it to test_util.h to improve
its visibility and make it usable by other tests.
Bug: none
Test: none
Change-Id: Idad5667844b10559b24f8f5e657e47d99e14209e
Signed-off-by: Alessio Balsini <balsini@google.com>
Also, add a "name" field to SnapshotStatus, and delete
the "name" arg from CreateSnapshot / WriteSnapshotStatus.
ReadSnapshotStatus will warn if the name mismatches from
the file name, and auto-correct it.
Test: libsnapshot_test
Change-Id: I725cf39c07684b100b140a8a21ea9d23ab9d2241
Enable fsck phase for scratch filesystem. Solved a resulting
problem where the end of the fsck executable would result in a
SIGHUP to the caller.
Add some debugging details from adb-remount-test.sh script
Test: adb-remount-test.sh
Bug: 138577868
Bug: 139283818
Bug: 139226412
Change-Id: I129d86b7cf4e938001ba6db8d03247bc9903988d
If no opeartions is to be executed on a partition, it is
possible that no snapshot is created for it. In that case,
don't crash when initalizing snapshots.
Test: libsnapshot_test
Change-Id: I7bb0b5596aa6e4eca319e9c88f6552d1907a6944
A single number is not enough to represent the ranges
that needs to be snapshotted in the target partition. For
prototyping now, just use device_size instead.
Add test in PartitionCowCreatorTest to ensure that this
doesn't regress. Also fix some trivial tests.
In follow-up CLs, snapshot ranges should be represented
with a more complicated structure. See b/141889746.
Bug: 141889746
Test: libsnapshot_test
Change-Id: I1a508c2464abce216ad4049cc2533ffdaa8cd14f
Allow the encryption policy version to be specified as a third field in
the "fileencryption=" fstab option, and expose it through the fstab
record so that vold can use it.
Bug: 140500999
Test: tested as series; see If64028d8580584b2c33c614cabd5d6b93657f608.
Also updated and ran the fs_mgr unit tests.
Change-Id: If5d56f4c84c4cd51e3f14c0a861c3e3ab6ff903f
If snapshot is already merged, MapUpdateSnapshot
will only map the base device, but it doesn't return
the path. Now, it returns the path of the base device as well.
Test: libsnapshot_test
Change-Id: Ic56bc1a624651f24185c52401a3a01e8942d5d57
Remove the extra folder of vts_core for vts_core_liblp_test and
vts_libdm_test since we have a better auto-gen option of auto_gen_config.
Bug: 141684102
Test: 1. m -j vts_core_liblp_test
2. m -j vts_libdm_test
3. check out/.../vts_core_liblp_test.config
and
out/.../vts_libdm_test.config
Change-Id: Ibcdf96104205b50b3da522364199330ad0190c70
This function is too big. Refactor it a bit.
- Reorder checks / variable initializations a bit.
They are independent of each other, so they can be
safely reordered.
- Put snapshot creation and initialization to their own
functions so that CreateUpdateSnapshots looks shorter.
Test: libsnapshot_test
Change-Id: I135b415d8e046dd91d31326fe7962ae44be4ccf8
At the second update for Virtual A/B device,
PartitionCowCreator thinks the COW partitions in
the existing super metadata as occupied. In fact, these
partitions aren't used after the merge.
Now, unmap these partitions from the device mapper. If
something bad happens and the previous update has not been
merged yet, the unmap will fail. Then, delete these old
COW partitions from the device.
Test: Virtual A/B update twice
Bug: 135752105
Change-Id: Iab867ded19755089e6e0800e553a10fbcddbb931
- Add TestDeviceInfo(string, string) to avoid holding
the 'rebooted' TestDeviceInfo variable after ownership is
transferred
- OTA client calls BeginUpdate after unmapping partitions.
Test: run libsnapshot_test
Change-Id: Id37e34b421d728eb320c0e0906abef3b61897e7c
Add a new SnapshotTestPropertyFetcher that sets up
good defaults for all test cases in libsnapshot_test.
Test: run libsnapshot_test
Change-Id: I6e0b31872d604bbd5f15b64ab7a8ea56d7c67405
Add libdm_test to vts-core suite and skip the test if the
first-api-level < 29.
Bug: 132702215
Test: atest vts_libdm_test
Change-Id: Ic805a4c08e5bf9f6c69019d4ea01825ae888e1fe
... which handles merge when boot completed. It also
dumps debug information when requested.
Bug: 135752105
Test: adb shell su 0 snapshotctl dump
Test: call snapshotctl merge at different stage of OTA:
- before OTA (exit normally)
- during OTA is applied (exit with error)
- after OTA is applied but before reboot (exit with error)
- after reboot (finish merge and exit normally)
- Manually stop its execution during merge and run again
(finish merge and exit normally)
Change-Id: Idcc6aea8d7bbeb9a1a288c966b8f5e14b3f6a3e7
