commit 9e88052fe74848724f9b3237319ef25bb38e575d
author Junyu Lai <junyulai@google.com> Tue Nov 14 15:44:37 2023 +0800
committer Junyu Lai <junyulai@google.com> Wed Nov 15 12:26:40 2023 +0800
tree c7f0aa292dc7e851b914f94754b8c6079d9e738b
parent 8b61783b78a80031b6ef4b4150e964bdc9f18c64

[BR11] Read data saver status from bpf

Writing data saver status to bpf is supported on Android V or
later devices. Thus, read that from bpf if available.

Test: atest FrameworksNetTests:android.net.connectivity.android.net.BpfNetMapsReaderTest
Test: atest ConnectivityCoverageTests:android.net.connectivity.android.net.ConnectivityManagerTest
Fix: 310801259
Change-Id: Ibd2616328d83f72ee6d2665239c3a44379d1ebf5

tests/unit/java/android/net/BpfNetMapsReaderTest.kt

diff --git a/tests/unit/java/android/net/BpfNetMapsReaderTest.kt b/tests/unit/java/android/net/BpfNetMapsReaderTest.kt
index 258e422..9de7f4d 100644
--- a/tests/unit/java/android/net/BpfNetMapsReaderTest.kt
+++ b/tests/unit/java/android/net/BpfNetMapsReaderTest.kt
@@ -16,6 +16,9 @@
 
 package android.net
 
+import android.net.BpfNetMapsConstants.DATA_SAVER_DISABLED
+import android.net.BpfNetMapsConstants.DATA_SAVER_ENABLED
+import android.net.BpfNetMapsConstants.DATA_SAVER_ENABLED_KEY
 import android.net.BpfNetMapsConstants.DOZABLE_MATCH
 import android.net.BpfNetMapsConstants.HAPPY_BOX_MATCH
 import android.net.BpfNetMapsConstants.PENALTY_BOX_MATCH
@@ -26,6 +29,8 @@
 import com.android.net.module.util.IBpfMap
 import com.android.net.module.util.Struct.S32
 import com.android.net.module.util.Struct.U32
+import com.android.net.module.util.Struct.U8
+import com.android.testutils.DevSdkIgnoreRule
 import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo
 import com.android.testutils.DevSdkIgnoreRunner
 import com.android.testutils.TestBpfMap
@@ -33,6 +38,7 @@
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertTrue
+import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -45,17 +51,24 @@
 @RunWith(DevSdkIgnoreRunner::class)
 @IgnoreUpTo(VERSION_CODES.S_V2)
 class BpfNetMapsReaderTest {
+    @Rule
+    @JvmField
+    val ignoreRule = DevSdkIgnoreRule()
+
     private val testConfigurationMap: IBpfMap<S32, U32> = TestBpfMap()
     private val testUidOwnerMap: IBpfMap<S32, UidOwnerValue> = TestBpfMap()
+    private val testDataSaverEnabledMap: IBpfMap<S32, U8> = TestBpfMap()
     private val bpfNetMapsReader = BpfNetMapsReader(
-        TestDependencies(testConfigurationMap, testUidOwnerMap))
+        TestDependencies(testConfigurationMap, testUidOwnerMap, testDataSaverEnabledMap))
 
     class TestDependencies(
         private val configMap: IBpfMap<S32, U32>,
-        private val uidOwnerMap: IBpfMap<S32, UidOwnerValue>
+        private val uidOwnerMap: IBpfMap<S32, UidOwnerValue>,
+        private val dataSaverEnabledMap: IBpfMap<S32, U8>
     ) : BpfNetMapsReader.Dependencies() {
         override fun getConfigurationMap() = configMap
         override fun getUidOwnerMap() = uidOwnerMap
+        override fun getDataSaverEnabledMap() = dataSaverEnabledMap
     }
 
     private fun doTestIsChainEnabled(chain: Int) {
@@ -199,4 +212,13 @@
         assertFalse(isUidNetworkingBlocked(TEST_UID2))
         assertFalse(isUidNetworkingBlocked(TEST_UID3))
     }
+
+    @IgnoreUpTo(VERSION_CODES.UPSIDE_DOWN_CAKE)
+    @Test
+    fun testGetDataSaverEnabled() {
+        testDataSaverEnabledMap.updateEntry(DATA_SAVER_ENABLED_KEY, U8(DATA_SAVER_DISABLED))
+        assertFalse(bpfNetMapsReader.dataSaverEnabled)
+        testDataSaverEnabledMap.updateEntry(DATA_SAVER_ENABLED_KEY, U8(DATA_SAVER_ENABLED))
+        assertTrue(bpfNetMapsReader.dataSaverEnabled)
+    }
 }