Disable Wi-Fi framework during VTS

When VTS case kills supplicant in SetUp, Wi-Fi framework will trigger
recovery process and causes races between VTS and Wi-Fi framework.

Disable Wi-Fi framework using 'cmd wifi' in SetUp.

Bug: 297820612
Test: run vts -m VtsHalWifiHostapdV1_0TargetTest with new case
Change-Id: I5ea7f00cfebf79021185f66766454d053c973b31

wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp

@@ -48,6 +48,13 @@ class HostapdHidlTest
     virtual void SetUp() override {
         wifi_instance_name_ = std::get<0>(GetParam());
         hostapd_instance_name_ = std::get<1>(GetParam());
+
+        // Disable Wi-Fi framework to avoid interference
+        isWifiEnabled_ = isWifiFrameworkEnabled();
+        isScanAlwaysEnabled_ = isWifiScanAlwaysAvailable();
+        toggleWifiFramework(false);
+        toggleWifiScanAlwaysAvailable(false);
+
         stopSupplicantIfNeeded(wifi_instance_name_);
         startHostapdAndWaitForHidlService(wifi_instance_name_,
                                           hostapd_instance_name_);
@@ -58,14 +65,21 @@ class HostapdHidlTest
     virtual void TearDown() override {
         HIDL_INVOKE_VOID_WITHOUT_ARGUMENTS(hostapd_, terminate);
         stopHostapd(wifi_instance_name_);
+
+        // Restore Wi-Fi framework state
+        toggleWifiFramework(isWifiEnabled_);
+        toggleWifiScanAlwaysAvailable(isScanAlwaysEnabled_);
     }
 
    protected:
-    std::string getPrimaryWlanIfaceName() {
+     bool isWifiEnabled_ = false;
+     bool isScanAlwaysEnabled_ = false;
+
+     std::string getPrimaryWlanIfaceName() {
         std::array<char, PROPERTY_VALUE_MAX> buffer;
         property_get("wifi.interface", buffer.data(), "wlan0");
         return buffer.data();
-    }
+     }
 
     IHostapd::IfaceParams getIfaceParamsWithAcs() {
         IHostapd::IfaceParams iface_params;

wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp

@@ -100,3 +100,24 @@ bool is_1_1(const sp<IHostapd>& hostapd) {
         ::android::hardware::wifi::hostapd::V1_1::IHostapd::castFrom(hostapd);
     return hostapd_1_1.get() != nullptr;
 }
+
+void toggleWifiFramework(bool enable) {
+    std::string cmd = "/system/bin/cmd wifi set-wifi-enabled ";
+    cmd += enable ? "enabled" : "disabled";
+    testing::checkSubstringInCommandOutput(cmd.c_str(), "X");
+}
+
+void toggleWifiScanAlwaysAvailable(bool enable) {
+    std::string cmd = "/system/bin/cmd wifi set-scan-always-available ";
+    cmd += enable ? "enabled" : "disabled";
+    testing::checkSubstringInCommandOutput(cmd.c_str(), "X");
+}
+
+bool isWifiFrameworkEnabled() {
+    return testing::checkSubstringInCommandOutput("/system/bin/cmd wifi status", "Wifi is enabled");
+}
+
+bool isWifiScanAlwaysAvailable() {
+    return testing::checkSubstringInCommandOutput("/system/bin/cmd wifi status",
+                                                  "Wifi scanning is always available");
+}

wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.h

@@ -17,14 +17,17 @@
 #ifndef HOSTAPD_HIDL_TEST_UTILS_H
 #define HOSTAPD_HIDL_TEST_UTILS_H
 
+#include <VtsCoreUtil.h>
 #include <android/hardware/wifi/hostapd/1.0/IHostapd.h>
 #include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
 
 // Used to stop the android wifi framework before every test.
-void stopWifiFramework(const std::string& instance_name);
-void startWifiFramework(const std::string& instance_name);
 void stopSupplicantIfNeeded(const std::string& instance_name);
 void stopHostapd(const std::string& instance_name);
+void toggleWifiFramework(bool enable);
+void toggleWifiScanAlwaysAvailable(bool enable);
+bool isWifiFrameworkEnabled();
+bool isWifiScanAlwaysAvailable();
 // Used to configure the chip, driver and start wpa_hostapd before every
 // test.
 void startHostapdAndWaitForHidlService(