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authorDavid Anderson <dvander@google.com>2019-08-30 00:09:22 +0200
committerDavid Anderson <dvander@google.com>2019-09-05 03:12:36 +0200
commit46f38e461042d5f84baee32250fd15e56301a134 (patch)
treed30db11856481383f770399602a4b575227e07ec /boot_control
parentImprove error messaging when bootcontrol HAL fails to load. (diff)
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Diffstat (limited to 'boot_control')
-rw-r--r--boot_control/Android.bp1
-rw-r--r--boot_control/include/libboot_control/libboot_control.h8
-rw-r--r--boot_control/libboot_control.cpp21
3 files changed, 30 insertions, 0 deletions
diff --git a/boot_control/Android.bp b/boot_control/Android.bp
index f6a6ceddd..b2e68dfd4 100644
--- a/boot_control/Android.bp
+++ b/boot_control/Android.bp
@@ -28,6 +28,7 @@ cc_defaults {
],
shared_libs: [
+ "android.hardware.boot@1.1",
"libbase",
"liblog",
],
diff --git a/boot_control/include/libboot_control/libboot_control.h b/boot_control/include/libboot_control/libboot_control.h
index 6582d0244..34a9affe1 100644
--- a/boot_control/include/libboot_control/libboot_control.h
+++ b/boot_control/include/libboot_control/libboot_control.h
@@ -18,11 +18,15 @@
#include <string>
+#include <android/hardware/boot/1.1/IBootControl.h>
+
namespace android {
namespace bootable {
// Helper library to implement the IBootControl HAL using the misc partition.
class BootControl {
+ using MergeStatus = ::android::hardware::boot::V1_1::MergeStatus;
+
public:
bool Init();
unsigned int GetNumberSlots();
@@ -34,6 +38,10 @@ class BootControl {
bool IsSlotBootable(unsigned int slot);
const char* GetSuffix(unsigned int slot);
bool IsSlotMarkedSuccessful(unsigned int slot);
+ bool SetSnapshotMergeStatus(MergeStatus status);
+ MergeStatus GetSnapshotMergeStatus();
+
+ bool IsValidSlot(unsigned int slot);
const std::string& misc_device() const {
return misc_device_;
diff --git a/boot_control/libboot_control.cpp b/boot_control/libboot_control.cpp
index 89cf8786a..e3bff9ff3 100644
--- a/boot_control/libboot_control.cpp
+++ b/boot_control/libboot_control.cpp
@@ -34,6 +34,8 @@
namespace android {
namespace bootable {
+using ::android::hardware::boot::V1_1::MergeStatus;
+
// The number of boot attempts that should be made from a new slot before
// rolling back to the previous slot.
constexpr unsigned int kDefaultBootAttempts = 7;
@@ -327,6 +329,25 @@ bool BootControl::IsSlotMarkedSuccessful(unsigned int slot) {
return bootctrl.slot_info[slot].successful_boot && bootctrl.slot_info[slot].tries_remaining;
}
+bool BootControl::IsValidSlot(unsigned int slot) {
+ return slot < kMaxNumSlots && slot < num_slots_;
+}
+
+bool BootControl::SetSnapshotMergeStatus(MergeStatus status) {
+ bootloader_control bootctrl;
+ if (!LoadBootloaderControl(misc_device_, &bootctrl)) return false;
+
+ bootctrl.merge_status = (unsigned int)status;
+ return UpdateAndSaveBootloaderControl(misc_device_, &bootctrl);
+}
+
+MergeStatus BootControl::GetSnapshotMergeStatus() {
+ bootloader_control bootctrl;
+ if (!LoadBootloaderControl(misc_device_, &bootctrl)) return MergeStatus::UNKNOWN;
+
+ return (MergeStatus)bootctrl.merge_status;
+}
+
const char* BootControl::GetSuffix(unsigned int slot) {
if (slot >= kMaxNumSlots || slot >= num_slots_) {
return nullptr;