wifi(implementation): Move set/getMacaddress to a util class
This is just a refactor to move the setMacAddress & getFactoryMacAddress
methods to a util class within the HAL. This can be then reused in AP
iface for mac randomization of SoftAp.
This also fixes a bug in the existing setMacAddress() method, the
current method always sets wlan0 up/down. STA interface could be wlan1
on some devices.
Bug: 78353419
Test: ./hardware/interfaces/wifi/1.3/default/tests/runtests.sh
Test: Manually verified STA MAC randomization still works.
Change-Id: I0bb8154f7e6dcae37c977454423c8c299762260e
diff --git a/wifi/1.3/default/wifi_iface_util.h b/wifi/1.3/default/wifi_iface_util.h
new file mode 100644
index 0000000..9495322
--- /dev/null
+++ b/wifi/1.3/default/wifi_iface_util.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_IFACE_UTIL_H_
+#define WIFI_IFACE_UTIL_H_
+
+#include <wifi_system/interface_tool.h>
+
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace iface_util {
+
+/**
+ * Util class for common iface operations.
+ */
+class WifiIfaceUtil {
+ public:
+ WifiIfaceUtil();
+ virtual ~WifiIfaceUtil() = default;
+
+ virtual std::array<uint8_t, 6> getFactoryMacAddress(
+ const std::string& iface_name);
+ virtual bool setMacAddress(const std::string& iface_name,
+ const std::array<uint8_t, 6>& mac);
+
+ private:
+ wifi_system::InterfaceTool iface_tool_;
+};
+
+} // namespace iface_util
+} // namespace implementation
+} // namespace V1_3
+} // namespace wifi
+} // namespace hardware
+} // namespace android
+
+#endif // WIFI_IFACE_UTIL_H_