fastbootd: Disallow certain operations during snapshot updates.
When a snapshot is applied or is merging, requests to erase or flash
userdata, metadata, or misc must be protected. In addition, the
set_active command must be restricted when a merge is in progress.
In addition, introduce a "snapshot-update merge" command for assisting
with erase requests when a merge is in progress. As in recovery, this
will force a merge to complete.
Bug: 139154945
Test: apply update
fastboot erase userdata
fastboot erase metadata
fastboot erase misc
fastboot set_active
Change-Id: I152446464335c62c39ffb4cc6366be9de19eac30
diff --git a/fastboot/device/variables.cpp b/fastboot/device/variables.cpp
index 6e613d6..91fc84c 100644
--- a/fastboot/device/variables.cpp
+++ b/fastboot/device/variables.cpp
@@ -432,19 +432,13 @@
std::string* message) {
// Note that we use the HAL rather than mounting /metadata, since we want
// our results to match the bootloader.
- auto hal = device->boot_control_hal();
+ auto hal = device->boot1_1();
if (!hal) {
*message = "not supported";
return false;
}
- android::sp<IBootControl1_1> hal11 = IBootControl1_1::castFrom(hal);
- if (!hal11) {
- *message = "not supported";
- return false;
- }
-
- MergeStatus status = hal11->getSnapshotMergeStatus();
+ MergeStatus status = hal->getSnapshotMergeStatus();
switch (status) {
case MergeStatus::SNAPSHOTTED:
*message = "snapshotted";