update_engine: New BootControlInterface class.
The new BootControlInterface class is a platform-independent
abstraction to control the bootloader. It provides methods for setting
what partition slots are available for booting and getting the
bootloader status about the available slots.
The Chrome OS specific implementation of the bootloader was moved to
the BootControlChromeOS which now depends on the vboot_host
implementation used in Chrome OS. Follow up CL will implement the
equivalent class for Brillo.
BUG=b:23010637
TEST=unittests; cros flash from the new image and rolled back from it.
Change-Id: I0a03aeeb8c21d8c99e1866b625e6e8c96628215b
diff --git a/hardware_interface.h b/hardware_interface.h
index 2010384..7dc4e53 100644
--- a/hardware_interface.h
+++ b/hardware_interface.h
@@ -24,38 +24,14 @@
namespace chromeos_update_engine {
-// The hardware interface allows access to the following parts of the system,
-// closely related to the hardware:
-// * crossystem exposed properties: firmware, hwid, etc.
-// * Physical disk: partition booted from and partition name conversions.
+// The hardware interface allows access to the crossystem exposed properties,
+// such as the firmware version, hwid, verified boot mode.
// These stateless functions are tied together in this interface to facilitate
// unit testing.
class HardwareInterface {
public:
virtual ~HardwareInterface() {}
- // Returns the currently booted kernel partition. "/dev/sda2", for example.
- virtual std::string BootKernelDevice() const = 0;
-
- // Returns the currently booted rootfs partition. "/dev/sda3", for example.
- virtual std::string BootDevice() const = 0;
-
- // Return whether the BootDevice() is a removable device.
- virtual bool IsBootDeviceRemovable() const = 0;
-
- // Returns a list of all kernel partitions available (whether bootable or not)
- virtual std::vector<std::string> GetKernelDevices() const = 0;
-
- // Is the specified kernel partition currently bootable, based on GPT flags?
- // Returns success.
- virtual bool IsKernelBootable(const std::string& kernel_device,
- bool* bootable) const = 0;
-
- // Mark the specified kernel partition unbootable in GPT flags. We mark
- // the other kernel as bootable inside postinst, not inside the UE.
- // Returns success.
- virtual bool MarkKernelUnbootable(const std::string& kernel_device) = 0;
-
// Returns true if this is an official Chrome OS build, false otherwise.
virtual bool IsOfficialBuild() const = 0;
