keystore: add API to query storage type
Add an API to query the HAL to see what kind of storage it reports the
device is.
Change-Id: I37951e989ad724e2352df6e321f03f19e58b4fca
diff --git a/keystore/IKeystoreService.cpp b/keystore/IKeystoreService.cpp
index 0803071..520d266 100644
--- a/keystore/IKeystoreService.cpp
+++ b/keystore/IKeystoreService.cpp
@@ -510,6 +510,24 @@
}
return ret;
}
+
+ virtual int32_t is_hardware_backed()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor());
+ status_t status = remote()->transact(BnKeystoreService::IS_HARDWARE_BACKED, data, &reply);
+ if (status != NO_ERROR) {
+ ALOGD("is_hardware_backed() could not contact remote: %d\n", status);
+ return -1;
+ }
+ int32_t err = reply.readExceptionCode();
+ int32_t ret = reply.readInt32();
+ if (err < 0) {
+ ALOGD("is_hardware_backed() caught exception %d\n", err);
+ return -1;
+ }
+ return ret;
+ }
};
IMPLEMENT_META_INTERFACE(KeystoreService, "android.security.keystore");
@@ -772,6 +790,13 @@
reply->writeInt32(ret);
return NO_ERROR;
} break;
+ case IS_HARDWARE_BACKED: {
+ CHECK_INTERFACE(IKeystoreService, data, reply);
+ int32_t ret = is_hardware_backed();
+ reply->writeNoException();
+ reply->writeInt32(ret);
+ return NO_ERROR;
+ }
default:
return BBinder::onTransact(code, data, reply, flags);
}