libsnapshot supports dependency injection for whether or not we use
recovery-specific code paths. Extend this to libfiemap.
Bug: 179006671
Test: vts_libsnapshot_test
Change-Id: Ief5a16d105cb51bc2593ebc2317a99c939371775
GetGsiService() is defined in libgsid, let libfs_mgr_binder link to
libgsid instead of duplicating the logic.
Test: Build and boot
Change-Id: I28d0c92b432a53770a3bdc5f4c5cd91e3466151c
Replace the original on demand start mechanism with the new dynamic
AIDL service infrastructure to resolve a possible race condition.
Bug: 149130673
Test: gsi_tool status
Change-Id: Ia5f32579a8dcf62d700d974c7f4e3c65647f3b8b
IImageManager::CreateBackingImage and ZeroFillNewImage now returns
FiemapStatus, which is an error code and provides more information
about the reason of error.
In particular, the error code is NO_SPACE if disk space is full during
allocation / writing.
Bug: 138808058
Test: libsnapshot_test
Change-Id: I500a3d9f55a2d7e60438b5b4ae70f8b5fed162fa
This adds a helper for first-stage init to easily map partitions backed
by /data. This can be used for the scratch partition as well as DSU
partitions.
Bug: 134949511
Test: fiemap_image_test
Change-Id: I46246b41ce19442d1476b9959e34df0e1bff58c3
This is needed for adb remount, to find the scratch device if it is
already mapped. Note that on devices without metadata encryption, this
cannot be done by querying device-mapper, since scratch will be a loop
device.
Bug: 134949511
Test: fiemap_image_test
Change-Id: Ia25d279c6f8a4838be32a8c01aefc67b5ec1e002
ImageManager can map images in recovery, but not delete them, because
/data is not mounted. libsnapshot handles this by storing extra state
files, but this is complex to manage and inconvenient for
fs_mgr_overlayfs.
Instead, this patch introduces two new calls:
- DisableImage(), which indicates the image should not be used. This is
implemented by adding a new DISABLED attribute to
LpPartitionMetadata. CreateLogicalPartitions ignores this flag, and
thus recovery/fastbootd can disable the scratch partition and
communicate that it can be deleted. This cannot be called from binder
since it is intended for recovery/first-stage init only.
- RemoveDisabledImages(), which walks the images for a given folder on
/metadata and deletes any that are disabled. This can be called from
binder.
Note that there is no metadata version bump for this flag. It's
considered to be included in the flag list for minor version 1, and
currently is not used for the actual super partition.
Bug: 134949511
Test: adb remount, fastboot flash system
Test: fiemap_image_test
Change-Id: Iaeca2d1eddb5637dd9a20202cafd11ae60b4d0e3
