Add IWifiApIface@1.4 (configurable MAC address)

Mirrors the methods and tests introduced in IWifiStaIface@1.2 and @1.3.

Android.bp generated with
$ hidl-gen -o . -Landroidbp -randroid.hardware:hardware/interfaces android.hardware.wifi@1.4

Bug: 132705022
Test: make vts && vts-tradefed run vts-host --skip-preconditions --primary-abi-only --module VtsHalWifiV1_4Host
Change-Id: Iddacd2770c59522001673d10daafd3bbed3844f6
diff --git a/wifi/1.4/vts/functional/Android.bp b/wifi/1.4/vts/functional/Android.bp
new file mode 100644
index 0000000..859be89
--- /dev/null
+++ b/wifi/1.4/vts/functional/Android.bp
@@ -0,0 +1,32 @@
+//
+// 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.
+//
+
+cc_test {
+    name: "VtsHalWifiV1_4TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiV1_4TargetTest.cpp",
+        "wifi_ap_iface_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "android.hardware.wifi@1.2",
+        "android.hardware.wifi@1.3",
+        "android.hardware.wifi@1.4",
+    ],
+}
diff --git a/wifi/1.4/vts/functional/VtsHalWifiV1_4TargetTest.cpp b/wifi/1.4/vts/functional/VtsHalWifiV1_4TargetTest.cpp
new file mode 100644
index 0000000..26b93a6
--- /dev/null
+++ b/wifi/1.4/vts/functional/VtsHalWifiV1_4TargetTest.cpp
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+
+#include <android-base/logging.h>
+#include <android/hardware/wifi/1.4/IWifi.h>
+
+#include "wifi_hidl_test_utils.h"
+
+using ::android::hardware::wifi::V1_4::IWifi;
+
+// Test environment for Wifi HIDL HAL.
+class WifiHidlEnvironment_1_4 : public WifiHidlEnvironment {
+   public:
+    // get the test environment singleton
+    static WifiHidlEnvironment_1_4* Instance() {
+        static WifiHidlEnvironment_1_4* instance = new WifiHidlEnvironment_1_4;
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<android::hardware::wifi::V1_4::IWifi>();
+    }
+
+   private:
+    WifiHidlEnvironment_1_4() {}
+};
+
+WifiHidlEnvironment_1_4* gEnv = WifiHidlEnvironment_1_4::Instance();
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    gEnv->init(&argc, argv);
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        status = RUN_ALL_TESTS();
+        LOG(INFO) << "Test result = " << status;
+    }
+    return status;
+}
diff --git a/wifi/1.4/vts/functional/wifi_ap_iface_hidl_test.cpp b/wifi/1.4/vts/functional/wifi_ap_iface_hidl_test.cpp
new file mode 100644
index 0000000..c2c1394
--- /dev/null
+++ b/wifi/1.4/vts/functional/wifi_ap_iface_hidl_test.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Staache 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.
+ */
+
+#include <android/hardware/wifi/1.4/IWifiApIface.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include "wifi_hidl_call_util.h"
+#include "wifi_hidl_test_utils.h"
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::wifi::V1_0::WifiStatus;
+using ::android::hardware::wifi::V1_0::WifiStatusCode;
+using ::android::hardware::wifi::V1_4::IWifiApIface;
+
+extern WifiHidlEnvironment* gEnv;
+
+/**
+ * Fixture to use for all STA Iface HIDL interface tests.
+ */
+class WifiApIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        if (!gEnv->isSoftApOn) return;
+        wifi_ap_iface_ = IWifiApIface::castFrom(getWifiApIface());
+        ASSERT_NE(nullptr, wifi_ap_iface_.get());
+    }
+
+    virtual void TearDown() override {
+        if (!gEnv->isSoftApOn) return;
+        stopWifi();
+    }
+
+   protected:
+    sp<IWifiApIface> wifi_ap_iface_;
+};
+
+/*
+ * SetMacAddress:
+ * Ensures that calls to set MAC address will return a success status
+ * code.
+ */
+TEST_F(WifiApIfaceHidlTest, SetMacAddress) {
+    if (!gEnv->isSoftApOn) return;
+    const hidl_array<uint8_t, 6> kMac{{0x12, 0x22, 0x33, 0x52, 0x10, 0x41}};
+    EXPECT_EQ(WifiStatusCode::SUCCESS,
+              HIDL_INVOKE(wifi_ap_iface_, setMacAddress, kMac).code);
+}
+
+/*
+ * GetFactoryMacAddress:
+ * Ensures that calls to get factory MAC address will retrieve a non-zero MAC
+ * and return a success status code.
+ */
+TEST_F(WifiApIfaceHidlTest, GetFactoryMacAddress) {
+    if (!gEnv->isSoftApOn) return;
+    std::pair<WifiStatus, hidl_array<uint8_t, 6> > status_and_mac =
+        HIDL_INVOKE(wifi_ap_iface_, getFactoryMacAddress);
+    EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_mac.first.code);
+    hidl_array<uint8_t, 6> all_zero{};
+    EXPECT_NE(all_zero, status_and_mac.second);
+}