Support Resume on Reboot
When an OTA is downloaded, the RecoverySystem can be triggered to store
the user's lock screen knowledge factor in a secure way using the
IRebootEscrow HAL. This will allow the credential encrypted (CE)
storage, keymaster credentials, and possibly others to be unlocked when
the device reboots after an OTA.
Bug: 63928581
Test: make
Test: boot emulator with default implementation
Test: boot Pixel 4 with default implementation
Change-Id: I1f02e7a502478715fd642049da01eb0c01d112f6
diff --git a/public/attributes b/public/attributes
index b600ea4..0fd2be2 100644
--- a/public/attributes
+++ b/public/attributes
@@ -325,6 +325,7 @@
hal_attribute(omx);
hal_attribute(power);
hal_attribute(power_stats);
+hal_attribute(rebootescrow);
hal_attribute(secure_element);
hal_attribute(sensors);
hal_attribute(telephony);
diff --git a/public/hal_rebootescrow.te b/public/hal_rebootescrow.te
new file mode 100644
index 0000000..4352630
--- /dev/null
+++ b/public/hal_rebootescrow.te
@@ -0,0 +1,7 @@
+# HwBinder IPC from client to server
+binder_call(hal_rebootescrow_client, hal_rebootescrow_server)
+
+add_service(hal_rebootescrow_server, hal_rebootescrow_service)
+binder_use(hal_rebootescrow_server)
+
+allow hal_rebootescrow_client hal_rebootescrow_service:service_manager find;
diff --git a/public/service.te b/public/service.te
index c025530..d9dee0f 100644
--- a/public/service.te
+++ b/public/service.te
@@ -197,6 +197,7 @@
### HAL Services
###
+type hal_rebootescrow_service, vendor_service, service_manager_type;
type hal_vibrator_service, vendor_service, service_manager_type;
###
diff --git a/public/su.te b/public/su.te
index f76a2a8..fa32a4b 100644
--- a/public/su.te
+++ b/public/su.te
@@ -86,6 +86,7 @@
typeattribute su hal_nfc_client;
typeattribute su hal_oemlock_client;
typeattribute su hal_power_client;
+ typeattribute su hal_rebootescrow_client;
typeattribute su hal_secure_element_client;
typeattribute su hal_sensors_client;
typeattribute su hal_telephony_client;