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-rw-r--r--core/java/android/net/LinkProperties.java76
-rw-r--r--core/java/android/net/MacAddress.java79
-rw-r--r--core/java/android/net/NetworkUtils.java10
-rw-r--r--core/java/android/net/RouteInfo.java17
-rw-r--r--services/core/java/com/android/server/ConnectivityService.java2
-rw-r--r--tests/net/common/java/android/net/LinkPropertiesTest.java2
-rw-r--r--tests/net/java/android/net/MacAddressTest.java12
-rw-r--r--wifi/java/android/net/wifi/WifiConfiguration.java5
-rw-r--r--wifi/tests/src/android/net/wifi/WifiConfigurationTest.java8
9 files changed, 179 insertions, 32 deletions
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 732ceb560cab..d25ee0e69e88 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -21,8 +21,6 @@ import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.compat.annotation.UnsupportedAppUsage;
-import android.net.util.LinkPropertiesUtils;
-import android.net.util.LinkPropertiesUtils.CompareResult;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
@@ -95,6 +93,36 @@ public final class LinkProperties implements Parcelable {
/**
* @hide
*/
+ public static class CompareResult<T> {
+ public final List<T> removed = new ArrayList<>();
+ public final List<T> added = new ArrayList<>();
+
+ public CompareResult() {}
+
+ public CompareResult(Collection<T> oldItems, Collection<T> newItems) {
+ if (oldItems != null) {
+ removed.addAll(oldItems);
+ }
+ if (newItems != null) {
+ for (T newItem : newItems) {
+ if (!removed.remove(newItem)) {
+ added.add(newItem);
+ }
+ }
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "removed=[" + TextUtils.join(",", removed)
+ + "] added=[" + TextUtils.join(",", added)
+ + "]";
+ }
+ }
+
+ /**
+ * @hide
+ */
@UnsupportedAppUsage(implicitMember =
"values()[Landroid/net/LinkProperties$ProvisioningChange;")
public enum ProvisioningChange {
@@ -1298,7 +1326,7 @@ public final class LinkProperties implements Parcelable {
*/
@UnsupportedAppUsage
public boolean isIdenticalInterfaceName(@NonNull LinkProperties target) {
- return LinkPropertiesUtils.isIdenticalInterfaceName(target, this);
+ return TextUtils.equals(getInterfaceName(), target.getInterfaceName());
}
/**
@@ -1321,7 +1349,10 @@ public final class LinkProperties implements Parcelable {
*/
@UnsupportedAppUsage
public boolean isIdenticalAddresses(@NonNull LinkProperties target) {
- return LinkPropertiesUtils.isIdenticalAddresses(target, this);
+ Collection<InetAddress> targetAddresses = target.getAddresses();
+ Collection<InetAddress> sourceAddresses = getAddresses();
+ return (sourceAddresses.size() == targetAddresses.size()) ?
+ sourceAddresses.containsAll(targetAddresses) : false;
}
/**
@@ -1333,7 +1364,15 @@ public final class LinkProperties implements Parcelable {
*/
@UnsupportedAppUsage
public boolean isIdenticalDnses(@NonNull LinkProperties target) {
- return LinkPropertiesUtils.isIdenticalDnses(target, this);
+ Collection<InetAddress> targetDnses = target.getDnsServers();
+ String targetDomains = target.getDomains();
+ if (mDomains == null) {
+ if (targetDomains != null) return false;
+ } else {
+ if (!mDomains.equals(targetDomains)) return false;
+ }
+ return (mDnses.size() == targetDnses.size()) ?
+ mDnses.containsAll(targetDnses) : false;
}
/**
@@ -1386,7 +1425,9 @@ public final class LinkProperties implements Parcelable {
*/
@UnsupportedAppUsage
public boolean isIdenticalRoutes(@NonNull LinkProperties target) {
- return LinkPropertiesUtils.isIdenticalRoutes(target, this);
+ Collection<RouteInfo> targetRoutes = target.getRoutes();
+ return (mRoutes.size() == targetRoutes.size()) ?
+ mRoutes.containsAll(targetRoutes) : false;
}
/**
@@ -1398,7 +1439,8 @@ public final class LinkProperties implements Parcelable {
*/
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public boolean isIdenticalHttpProxy(@NonNull LinkProperties target) {
- return LinkPropertiesUtils.isIdenticalHttpProxy(target, this);
+ return getHttpProxy() == null ? target.getHttpProxy() == null :
+ getHttpProxy().equals(target.getHttpProxy());
}
/**
@@ -1621,6 +1663,26 @@ public final class LinkProperties implements Parcelable {
}
/**
+ * Compares the addresses in this LinkProperties with another
+ * LinkProperties, examining only addresses on the base link.
+ *
+ * @param target a LinkProperties with the new list of addresses
+ * @return the differences between the addresses.
+ * @hide
+ */
+ public @NonNull CompareResult<LinkAddress> compareAddresses(@Nullable LinkProperties target) {
+ /*
+ * Duplicate the LinkAddresses into removed, we will be removing
+ * address which are common between mLinkAddresses and target
+ * leaving the addresses that are different. And address which
+ * are in target but not in mLinkAddresses are placed in the
+ * addedAddresses.
+ */
+ return new CompareResult<>(mLinkAddresses,
+ target != null ? target.getLinkAddresses() : null);
+ }
+
+ /**
* Compares the DNS addresses in this LinkProperties with another
* LinkProperties, examining only DNS addresses on the base link.
*
diff --git a/core/java/android/net/MacAddress.java b/core/java/android/net/MacAddress.java
index 0e10c42e61db..74c9aac05b41 100644
--- a/core/java/android/net/MacAddress.java
+++ b/core/java/android/net/MacAddress.java
@@ -20,11 +20,11 @@ import android.annotation.IntDef;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.compat.annotation.UnsupportedAppUsage;
-import android.net.util.MacAddressUtils;
import android.net.wifi.WifiInfo;
import android.os.Parcel;
import android.os.Parcelable;
+import com.android.internal.util.BitUtils;
import com.android.internal.util.Preconditions;
import java.lang.annotation.Retention;
@@ -33,6 +33,7 @@ import java.net.Inet6Address;
import java.net.UnknownHostException;
import java.security.SecureRandom;
import java.util.Arrays;
+import java.util.Random;
/**
* Representation of a MAC address.
@@ -108,13 +109,21 @@ public final class MacAddress implements Parcelable {
if (equals(BROADCAST_ADDRESS)) {
return TYPE_BROADCAST;
}
- if ((mAddr & MULTICAST_MASK) != 0) {
+ if (isMulticastAddress()) {
return TYPE_MULTICAST;
}
return TYPE_UNICAST;
}
/**
+ * @return true if this MacAddress is a multicast address.
+ * @hide
+ */
+ public boolean isMulticastAddress() {
+ return (mAddr & MULTICAST_MASK) != 0;
+ }
+
+ /**
* @return true if this MacAddress is a locally assigned address.
*/
public boolean isLocallyAssigned() {
@@ -183,7 +192,7 @@ public final class MacAddress implements Parcelable {
* @hide
*/
public static boolean isMacAddress(byte[] addr) {
- return MacAddressUtils.isMacAddress(addr);
+ return addr != null && addr.length == ETHER_ADDR_LEN;
}
/**
@@ -252,11 +261,26 @@ public final class MacAddress implements Parcelable {
}
private static byte[] byteAddrFromLongAddr(long addr) {
- return MacAddressUtils.byteAddrFromLongAddr(addr);
+ byte[] bytes = new byte[ETHER_ADDR_LEN];
+ int index = ETHER_ADDR_LEN;
+ while (index-- > 0) {
+ bytes[index] = (byte) addr;
+ addr = addr >> 8;
+ }
+ return bytes;
}
private static long longAddrFromByteAddr(byte[] addr) {
- return MacAddressUtils.longAddrFromByteAddr(addr);
+ Preconditions.checkNotNull(addr);
+ if (!isMacAddress(addr)) {
+ throw new IllegalArgumentException(
+ Arrays.toString(addr) + " was not a valid MAC address");
+ }
+ long longAddr = 0;
+ for (byte b : addr) {
+ longAddr = (longAddr << 8) + BitUtils.uint8(b);
+ }
+ return longAddr;
}
// Internal conversion function equivalent to longAddrFromByteAddr(byteAddrFromStringAddr(addr))
@@ -326,7 +350,50 @@ public final class MacAddress implements Parcelable {
* @hide
*/
public static @NonNull MacAddress createRandomUnicastAddressWithGoogleBase() {
- return MacAddressUtils.createRandomUnicastAddress(BASE_GOOGLE_MAC, new SecureRandom());
+ return createRandomUnicastAddress(BASE_GOOGLE_MAC, new SecureRandom());
+ }
+
+ /**
+ * Returns a generated MAC address whose 46 bits, excluding the locally assigned bit and the
+ * unicast bit, are randomly selected.
+ *
+ * The locally assigned bit is always set to 1. The multicast bit is always set to 0.
+ *
+ * @return a random locally assigned, unicast MacAddress.
+ *
+ * @hide
+ */
+ public static @NonNull MacAddress createRandomUnicastAddress() {
+ return createRandomUnicastAddress(null, new SecureRandom());
+ }
+
+ /**
+ * Returns a randomly generated MAC address using the given Random object and the same
+ * OUI values as the given MacAddress.
+ *
+ * The locally assigned bit is always set to 1. The multicast bit is always set to 0.
+ *
+ * @param base a base MacAddress whose OUI is used for generating the random address.
+ * If base == null then the OUI will also be randomized.
+ * @param r a standard Java Random object used for generating the random address.
+ * @return a random locally assigned MacAddress.
+ *
+ * @hide
+ */
+ public static @NonNull MacAddress createRandomUnicastAddress(MacAddress base, Random r) {
+ long addr;
+ if (base == null) {
+ addr = r.nextLong() & VALID_LONG_MASK;
+ } else {
+ addr = (base.mAddr & OUI_MASK) | (NIC_MASK & r.nextLong());
+ }
+ addr |= LOCALLY_ASSIGNED_MASK;
+ addr &= ~MULTICAST_MASK;
+ MacAddress mac = new MacAddress(addr);
+ if (mac.equals(DEFAULT_MAC_ADDRESS)) {
+ return createRandomUnicastAddress(base, r);
+ }
+ return mac;
}
// Convenience function for working around the lack of byte literals.
diff --git a/core/java/android/net/NetworkUtils.java b/core/java/android/net/NetworkUtils.java
index 779f7bc91e8f..08cc4e24b245 100644
--- a/core/java/android/net/NetworkUtils.java
+++ b/core/java/android/net/NetworkUtils.java
@@ -31,6 +31,7 @@ import android.util.Pair;
import java.io.FileDescriptor;
import java.math.BigInteger;
import java.net.Inet4Address;
+import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
@@ -312,6 +313,15 @@ public class NetworkUtils {
}
/**
+ * Check if IP address type is consistent between two InetAddress.
+ * @return true if both are the same type. False otherwise.
+ */
+ public static boolean addressTypeMatches(InetAddress left, InetAddress right) {
+ return (((left instanceof Inet4Address) && (right instanceof Inet4Address)) ||
+ ((left instanceof Inet6Address) && (right instanceof Inet6Address)));
+ }
+
+ /**
* Convert a 32 char hex string into a Inet6Address.
* throws a runtime exception if the string isn't 32 chars, isn't hex or can't be
* made into an Inet6Address
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 2b9e9fe81b1b..67bad532cd0d 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -22,7 +22,6 @@ import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.compat.annotation.UnsupportedAppUsage;
-import android.net.util.NetUtils;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
@@ -484,7 +483,21 @@ public final class RouteInfo implements Parcelable {
@UnsupportedAppUsage
@Nullable
public static RouteInfo selectBestRoute(Collection<RouteInfo> routes, InetAddress dest) {
- return NetUtils.selectBestRoute(routes, dest);
+ if ((routes == null) || (dest == null)) return null;
+
+ RouteInfo bestRoute = null;
+ // pick a longest prefix match under same address type
+ for (RouteInfo route : routes) {
+ if (NetworkUtils.addressTypeMatches(route.mDestination.getAddress(), dest)) {
+ if ((bestRoute != null) &&
+ (bestRoute.mDestination.getPrefixLength() >=
+ route.mDestination.getPrefixLength())) {
+ continue;
+ }
+ if (route.matches(dest)) bestRoute = route;
+ }
+ }
+ return bestRoute;
}
/**
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 55206e75088e..e2b8ad948d3c 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -88,6 +88,7 @@ import android.net.InetAddresses;
import android.net.IpMemoryStore;
import android.net.IpPrefix;
import android.net.LinkProperties;
+import android.net.LinkProperties.CompareResult;
import android.net.MatchAllNetworkSpecifier;
import android.net.NattSocketKeepalive;
import android.net.Network;
@@ -122,7 +123,6 @@ import android.net.metrics.IpConnectivityLog;
import android.net.metrics.NetworkEvent;
import android.net.netlink.InetDiagMessage;
import android.net.shared.PrivateDnsConfig;
-import android.net.util.LinkPropertiesUtils.CompareResult;
import android.net.util.MultinetworkPolicyTracker;
import android.net.util.NetdService;
import android.os.Binder;
diff --git a/tests/net/common/java/android/net/LinkPropertiesTest.java b/tests/net/common/java/android/net/LinkPropertiesTest.java
index f25fd4daf829..3f311c951c7e 100644
--- a/tests/net/common/java/android/net/LinkPropertiesTest.java
+++ b/tests/net/common/java/android/net/LinkPropertiesTest.java
@@ -27,8 +27,8 @@ import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
+import android.net.LinkProperties.CompareResult;
import android.net.LinkProperties.ProvisioningChange;
-import android.net.util.LinkPropertiesUtils.CompareResult;
import android.system.OsConstants;
import android.util.ArraySet;
diff --git a/tests/net/java/android/net/MacAddressTest.java b/tests/net/java/android/net/MacAddressTest.java
index 91c9a2a38036..daf187d01533 100644
--- a/tests/net/java/android/net/MacAddressTest.java
+++ b/tests/net/java/android/net/MacAddressTest.java
@@ -22,8 +22,6 @@ import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
-import android.net.util.MacAddressUtils;
-
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
@@ -124,11 +122,11 @@ public class MacAddressTest {
for (MacAddress mac : multicastAddresses) {
String msg = mac.toString() + " expected to be a multicast address";
- assertTrue(msg, MacAddressUtils.isMulticastAddress(mac));
+ assertTrue(msg, mac.isMulticastAddress());
}
for (MacAddress mac : unicastAddresses) {
String msg = mac.toString() + " expected not to be a multicast address";
- assertFalse(msg, MacAddressUtils.isMulticastAddress(mac));
+ assertFalse(msg, mac.isMulticastAddress());
}
}
@@ -158,7 +156,7 @@ public class MacAddressTest {
public void testMacAddressConversions() {
final int iterations = 10000;
for (int i = 0; i < iterations; i++) {
- MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
+ MacAddress mac = MacAddress.createRandomUnicastAddress();
String stringRepr = mac.toString();
byte[] bytesRepr = mac.toByteArray();
@@ -190,7 +188,7 @@ public class MacAddressTest {
final String expectedLocalOui = "26:5f:78";
final MacAddress base = MacAddress.fromString(anotherOui + ":0:0:0");
for (int i = 0; i < iterations; i++) {
- MacAddress mac = MacAddressUtils.createRandomUnicastAddress(base, r);
+ MacAddress mac = MacAddress.createRandomUnicastAddress(base, r);
String stringRepr = mac.toString();
assertTrue(stringRepr + " expected to be a locally assigned address",
@@ -201,7 +199,7 @@ public class MacAddressTest {
}
for (int i = 0; i < iterations; i++) {
- MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
+ MacAddress mac = MacAddress.createRandomUnicastAddress();
String stringRepr = mac.toString();
assertTrue(stringRepr + " expected to be a locally assigned address",
diff --git a/wifi/java/android/net/wifi/WifiConfiguration.java b/wifi/java/android/net/wifi/WifiConfiguration.java
index ce49ab1208b0..933dded815b9 100644
--- a/wifi/java/android/net/wifi/WifiConfiguration.java
+++ b/wifi/java/android/net/wifi/WifiConfiguration.java
@@ -28,7 +28,6 @@ import android.net.NetworkSpecifier;
import android.net.ProxyInfo;
import android.net.StaticIpConfiguration;
import android.net.Uri;
-import android.net.util.MacAddressUtils;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
@@ -1038,7 +1037,7 @@ public class WifiConfiguration implements Parcelable {
* @return true if mac is good to use
*/
public static boolean isValidMacAddressForRandomization(MacAddress mac) {
- return mac != null && !MacAddressUtils.isMulticastAddress(mac) && mac.isLocallyAssigned()
+ return mac != null && !mac.isMulticastAddress() && mac.isLocallyAssigned()
&& !MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS).equals(mac);
}
@@ -1052,7 +1051,7 @@ public class WifiConfiguration implements Parcelable {
int randomMacGenerationCount = 0;
while (!isValidMacAddressForRandomization(mRandomizedMacAddress)
&& randomMacGenerationCount < MAXIMUM_RANDOM_MAC_GENERATION_RETRY) {
- mRandomizedMacAddress = MacAddressUtils.createRandomUnicastAddress();
+ mRandomizedMacAddress = MacAddress.createRandomUnicastAddress();
randomMacGenerationCount++;
}
diff --git a/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java b/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
index 15aa3cc4a355..ba9fc786afe7 100644
--- a/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
+++ b/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
@@ -23,7 +23,6 @@ import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
import android.net.MacAddress;
-import android.net.util.MacAddressUtils;
import android.net.wifi.WifiConfiguration.KeyMgmt;
import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
import android.os.Parcel;
@@ -63,8 +62,7 @@ public class WifiConfigurationTest {
config.updateIdentifier = "1234";
config.fromWifiNetworkSpecifier = true;
config.fromWifiNetworkSuggestion = true;
- config.setRandomizedMacAddress(MacAddressUtils.createRandomUnicastAddress());
- MacAddress macBeforeParcel = config.getRandomizedMacAddress();
+ MacAddress macBeforeParcel = config.getOrCreateRandomizedMacAddress();
Parcel parcelW = Parcel.obtain();
config.writeToParcel(parcelW, 0);
byte[] bytes = parcelW.marshall();
@@ -77,7 +75,7 @@ public class WifiConfigurationTest {
// lacking a useful config.equals, check two fields near the end.
assertEquals(cookie, reconfig.getMoTree());
- assertEquals(macBeforeParcel, reconfig.getRandomizedMacAddress());
+ assertEquals(macBeforeParcel, reconfig.getOrCreateRandomizedMacAddress());
assertEquals(config.updateIdentifier, reconfig.updateIdentifier);
assertFalse(reconfig.trusted);
assertTrue(config.fromWifiNetworkSpecifier);
@@ -213,7 +211,7 @@ public class WifiConfigurationTest {
MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
assertEquals(defaultMac, config.getRandomizedMacAddress());
- MacAddress macToChangeInto = MacAddressUtils.createRandomUnicastAddress();
+ MacAddress macToChangeInto = MacAddress.createRandomUnicastAddress();
config.setRandomizedMacAddress(macToChangeInto);
MacAddress macAfterChange = config.getRandomizedMacAddress();
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-16 06:55:18 +0000