Merge "Use EUI64 IPv6 link-local address generation when randomizing MAC" into rvc-dev am: edd8833275

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/net/wifi/+/11689262

Change-Id: Ie080f6d65c4e6cdc3925c827f6b3b87afb750841

1 files changed, 20 insertions, 10 deletions

diff --git a/service/java/com/android/server/wifi/ClientModeImpl.java b/service/java/com/android/server/wifi/ClientModeImpl.java
index 5b616dd0a..b5bd479db 100644
--- a/service/java/com/android/server/wifi/ClientModeImpl.java
+++ b/service/java/com/android/server/wifi/ClientModeImpl.java
@@ -6447,12 +6447,17 @@ public class ClientModeImpl extends StateMachine {
 
         final boolean isUsingStaticIp =
                 (config.getIpAssignment() == IpConfiguration.IpAssignment.STATIC);
+        final boolean isUsingMacRandomization =
+                config.macRandomizationSetting
+                        == WifiConfiguration.RANDOMIZATION_PERSISTENT
+                        && isConnectedMacRandomizationEnabled();
         if (mVerboseLoggingEnabled) {
             final String key = config.getKey();
             log("startIpClient netId=" + Integer.toString(mLastNetworkId)
                     + " " + key + " "
                     + " roam=" + mIsAutoRoaming
                     + " static=" + isUsingStaticIp
+                    + " randomMac=" + isUsingMacRandomization
                     + " isFilsConnection=" + isFilsConnection);
         }
 
@@ -6471,15 +6476,18 @@ public class ClientModeImpl extends StateMachine {
                 return false;
             }
             setConfigurationsPriorToIpClientProvisioning(config);
-            final ProvisioningConfiguration prov =
+            final ProvisioningConfiguration.Builder prov =
                     new ProvisioningConfiguration.Builder()
                     .withPreDhcpAction()
                     .withPreconnection()
                     .withApfCapabilities(
                     mWifiNative.getApfCapabilities(mInterfaceName))
-                    .withLayer2Information(layer2Info)
-                    .build();
-            mIpClient.startProvisioning(prov);
+                    .withLayer2Information(layer2Info);
+            if (isUsingMacRandomization) {
+                // Use EUI64 address generation for link-local IPv6 addresses.
+                prov.withRandomMacAddress();
+            }
+            mIpClient.startProvisioning(prov.build());
         } else {
             sendNetworkChangeBroadcast(DetailedState.OBTAINING_IPADDR);
             // We must clear the config BSSID, as the wifi chipset may decide to roam
@@ -6521,7 +6529,7 @@ public class ClientModeImpl extends StateMachine {
                 }
             }
 
-            final ProvisioningConfiguration prov;
+            final ProvisioningConfiguration.Builder prov;
             ProvisioningConfiguration.ScanResultInfo scanResultInfo = null;
             if (scanResult != null) {
                 final List<ScanResultInfo.InformationElement> ies =
@@ -6542,8 +6550,7 @@ public class ClientModeImpl extends StateMachine {
                     .withNetwork(getCurrentNetwork())
                     .withDisplayName(config.SSID)
                     .withScanResultInfo(scanResultInfo)
-                    .withLayer2Information(layer2Info)
-                    .build();
+                    .withLayer2Information(layer2Info);
             } else {
                 StaticIpConfiguration staticIpConfig = config.getStaticIpConfiguration();
                 prov = new ProvisioningConfiguration.Builder()
@@ -6551,10 +6558,13 @@ public class ClientModeImpl extends StateMachine {
                         .withApfCapabilities(mWifiNative.getApfCapabilities(mInterfaceName))
                         .withNetwork(getCurrentNetwork())
                         .withDisplayName(config.SSID)
-                        .withLayer2Information(layer2Info)
-                        .build();
+                        .withLayer2Information(layer2Info);
+            }
+            if (isUsingMacRandomization) {
+                // Use EUI64 address generation for link-local IPv6 addresses.
+                prov.withRandomMacAddress();
             }
-            mIpClient.startProvisioning(prov);
+            mIpClient.startProvisioning(prov.build());
         }
 
         return true;