Wifi MAC Randomization: Developer option change global settings

Enabling/disabling the connected mac randomization toggle in developer options will change Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLE, which the wifi framework can look at to decide whether or not to randomized mac addresses. Also added descriptions for the toggle in developer options.

Bug: 67908229
Bug: 71548421
Test: manual testing of checking that the option correctly displays and
logs to check that the toggle correctly changes values.
Change-Id: I48a2dc34d772b0e4ce7637df904b274c9fe1218f

5 files changed, 18 insertions, 1 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index b2cc18b94641..68e4b4e1ffc6 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -9424,6 +9424,14 @@ public final class Settings {
        public static final String WIFI_VERBOSE_LOGGING_ENABLED =
                "wifi_verbose_logging_enabled";
 
+        /**
+         * Setting to enable connected MAC randomization in Wi-Fi; disabled by default, and
+         * setting to 1 will enable it. In the future, additional values may be supported.
+         * @hide
+         */
+        public static final String WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED =
+                "wifi_connected_mac_randomization_enabled";
+
        /**
         * The maximum number of times we will retry a connection to an access
         * point for which we have failed in acquiring an IP address from DHCP.
diff --git a/core/proto/android/providers/settings.proto b/core/proto/android/providers/settings.proto
index 8d6df12d56dd..95eb889a3f3a 100644
--- a/core/proto/android/providers/settings.proto
+++ b/core/proto/android/providers/settings.proto
@@ -391,8 +391,9 @@ message GlobalSettingsProto {
     optional SettingProto zram_enabled = 347;
     optional SettingProto enable_smart_replies_in_notifications = 348;
     optional SettingProto show_first_crash_dialog = 349;
+    optional SettingProto wifi_connected_mac_randomization_enabled = 350;
 
-    // Next tag = 350;
+    // Next tag = 351;
 }
 
 message SecureSettingsProto {
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index ec3a6ce18cce..6d038f32772f 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -390,6 +390,7 @@ public class SettingsBackupTest {
                     Settings.Global.WFC_IMS_ROAMING_MODE,
                     Settings.Global.WIFI_BADGING_THRESHOLDS,
                     Settings.Global.WIFI_BOUNCE_DELAY_OVERRIDE_MS,
+                    Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
                     Settings.Global.WIFI_COUNTRY_CODE,
                     Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN,
                     Settings.Global.WIFI_DISPLAY_CERTIFICATION_ON,
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index b13de2ec5ce1..5acedd2085c9 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -498,6 +498,8 @@
     <string name="wifi_display_certification">Wireless display certification</string>
     <!-- Setting Checkbox title whether to enable WiFi Verbose Logging. [CHAR LIMIT=40] -->
     <string name="wifi_verbose_logging">Enable Wi\u2011Fi Verbose Logging</string>
+    <!-- Setting Checkbox title whether to enable connected MAC randomization -->
+    <string name="wifi_connected_mac_randomization">Connected MAC Randomization</string>
     <!-- Setting Checkbox title whether to always keep mobile data active. [CHAR LIMIT=80] -->
     <string name="mobile_data_always_on">Mobile data always active</string>
     <!-- Setting Checkbox title whether to enable hardware acceleration for tethering. [CHAR LIMIT=80] -->
@@ -552,6 +554,8 @@
     <string name="wifi_display_certification_summary">Show options for wireless display certification</string>
     <!-- Setting Checkbox summary whether to enable Wifi verbose Logging [CHAR LIMIT=80] -->
     <string name="wifi_verbose_logging_summary">Increase Wi\u2011Fi logging level, show per SSID RSSI in Wi\u2011Fi Picker</string>
+    <!-- Setting Checkbox title whether to enable connected MAC randomization -->
+    <string name="wifi_connected_mac_randomization_summary">Randomize MAC address when connecting to Wi\u2011Fi networks</string>
     <!-- UI debug setting: limit size of Android logger buffers -->
     <string name="select_logd_size_title">Logger buffer sizes</string>
     <!-- UI debug setting: limit size of Android logger buffers [CHAR LIMIT=59] -->
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index 87ed7eb705e9..5a75681f43c4 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -1128,6 +1128,9 @@ class SettingsProtoDumpUtil {
         dumpSetting(s, p,
                 Settings.Global.SHOW_FIRST_CRASH_DIALOG,
                 GlobalSettingsProto.SHOW_FIRST_CRASH_DIALOG);
+        dumpSetting(s, p,
+                    Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
+                    GlobalSettingsProto.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED);
     }
 
     /** Dump a single {@link SettingsState.Setting} to a proto buf */