Merge "Move DnsPacket to libs net" into rvc-dev
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index a3fd60e..004f844 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -900,9 +900,17 @@
* <p>For NetworkCapability instances being sent from ConnectivityService, this value MUST be
* reset to Process.INVALID_UID unless all the following conditions are met:
*
+ * <p>The caller is the network owner, AND one of the following sets of requirements is met:
+ *
* <ol>
- * <li>The destination app is the network owner
- * <li>The destination app has the ACCESS_FINE_LOCATION permission granted
+ * <li>The described Network is a VPN
+ * </ol>
+ *
+ * <p>OR:
+ *
+ * <ol>
+ * <li>The calling app is the network owner
+ * <li>The calling app has the ACCESS_FINE_LOCATION permission granted
* <li>The user's location toggle is on
* </ol>
*
@@ -928,7 +936,16 @@
/**
* Retrieves the UID of the app that owns this network.
*
- * <p>For user privacy reasons, this field will only be populated if:
+ * <p>For user privacy reasons, this field will only be populated if the following conditions
+ * are met:
+ *
+ * <p>The caller is the network owner, AND one of the following sets of requirements is met:
+ *
+ * <ol>
+ * <li>The described Network is a VPN
+ * </ol>
+ *
+ * <p>OR:
*
* <ol>
* <li>The calling app is the network owner
@@ -936,8 +953,8 @@
* <li>The user's location toggle is on
* </ol>
*
- * Instances of NetworkCapabilities sent to apps without the appropriate permissions will
- * have this field cleared out.
+ * Instances of NetworkCapabilities sent to apps without the appropriate permissions will have
+ * this field cleared out.
*/
public int getOwnerUid() {
return mOwnerUid;
diff --git a/core/java/android/net/NetworkUtils.java b/core/java/android/net/NetworkUtils.java
index 779f7bc..0b92b95 100644
--- a/core/java/android/net/NetworkUtils.java
+++ b/core/java/android/net/NetworkUtils.java
@@ -155,6 +155,14 @@
public static native Network getDnsNetwork() throws ErrnoException;
/**
+ * Allow/Disallow creating AF_INET/AF_INET6 sockets and DNS lookups for current process.
+ *
+ * @param allowNetworking whether to allow or disallow creating AF_INET/AF_INET6 sockets
+ * and DNS lookups.
+ */
+ public static native void setAllowNetworkingForProcess(boolean allowNetworking);
+
+ /**
* Get the tcp repair window associated with the {@code fd}.
*
* @param fd the tcp socket's {@link FileDescriptor}.
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index e550f85..9876076 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -26,7 +26,6 @@
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
-import android.util.Pair;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
@@ -554,15 +553,45 @@
}
/**
- * A helper class that contains the destination and the gateway in a {@code RouteInfo},
- * used by {@link ConnectivityService#updateRoutes} or
+ * A helper class that contains the destination, the gateway and the interface in a
+ * {@code RouteInfo}, used by {@link ConnectivityService#updateRoutes} or
* {@link LinkProperties#addRoute} to calculate the list to be updated.
+ * {@code RouteInfo} objects with different interfaces are treated as different routes because
+ * *usually* on Android different interfaces use different routing tables, and moving a route
+ * to a new routing table never constitutes an update, but is always a remove and an add.
*
* @hide
*/
- public static class RouteKey extends Pair<IpPrefix, InetAddress> {
- RouteKey(@NonNull IpPrefix destination, @Nullable InetAddress gateway) {
- super(destination, gateway);
+ public static class RouteKey {
+ @NonNull private final IpPrefix mDestination;
+ @Nullable private final InetAddress mGateway;
+ @Nullable private final String mInterface;
+
+ RouteKey(@NonNull IpPrefix destination, @Nullable InetAddress gateway,
+ @Nullable String iface) {
+ mDestination = destination;
+ mGateway = gateway;
+ mInterface = iface;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (!(o instanceof RouteKey)) {
+ return false;
+ }
+ RouteKey p = (RouteKey) o;
+ // No need to do anything special for scoped addresses. Inet6Address#equals does not
+ // consider the scope ID, but the netd route IPCs (e.g., INetd#networkAddRouteParcel)
+ // and the kernel ignore scoped addresses both in the prefix and in the nexthop and only
+ // look at RTA_OIF.
+ return Objects.equals(p.mDestination, mDestination)
+ && Objects.equals(p.mGateway, mGateway)
+ && Objects.equals(p.mInterface, mInterface);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(mDestination, mGateway, mInterface);
}
}
@@ -574,7 +603,7 @@
*/
@NonNull
public RouteKey getRouteKey() {
- return new RouteKey(mDestination, mGateway);
+ return new RouteKey(mDestination, mGateway, mInterface);
}
/**
diff --git a/core/jni/android_net_NetUtils.cpp b/core/jni/android_net_NetUtils.cpp
index 03b9793..d4805ac 100644
--- a/core/jni/android_net_NetUtils.cpp
+++ b/core/jni/android_net_NetUtils.cpp
@@ -226,6 +226,11 @@
class_Network, ctor, dnsNetId & ~NETID_USE_LOCAL_NAMESERVERS, privateDnsBypass);
}
+static void android_net_utils_setAllowNetworkingForProcess(JNIEnv *env, jobject thiz,
+ jboolean hasConnectivity) {
+ setAllowNetworkingForProcess(hasConnectivity == JNI_TRUE);
+}
+
static jobject android_net_utils_getTcpRepairWindow(JNIEnv *env, jobject thiz, jobject javaFd) {
if (javaFd == NULL) {
jniThrowNullPointerException(env, NULL);
@@ -266,6 +271,7 @@
/*
* JNI registration.
*/
+// clang-format off
static const JNINativeMethod gNetworkUtilMethods[] = {
/* name, signature, funcPtr */
{ "bindProcessToNetwork", "(I)Z", (void*) android_net_utils_bindProcessToNetwork },
@@ -282,7 +288,9 @@
{ "resNetworkResult", "(Ljava/io/FileDescriptor;)Landroid/net/DnsResolver$DnsResponse;", (void*) android_net_utils_resNetworkResult },
{ "resNetworkCancel", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_resNetworkCancel },
{ "getDnsNetwork", "()Landroid/net/Network;", (void*) android_net_utils_getDnsNetwork },
+ { "setAllowNetworkingForProcess", "(Z)V", (void *)android_net_utils_setAllowNetworkingForProcess },
};
+// clang-format on
int register_android_net_NetworkUtils(JNIEnv* env)
{
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 2958fd2..36ba610 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -1698,6 +1698,12 @@
return newNc;
}
+ // Allow VPNs to see ownership of their own VPN networks - not location sensitive.
+ if (nc.hasTransport(TRANSPORT_VPN)) {
+ // Owner UIDs already checked above. No need to re-check.
+ return newNc;
+ }
+
Binder.withCleanCallingIdentity(
() -> {
if (!mLocationPermissionChecker.checkLocationPermission(
diff --git a/tests/net/common/java/android/net/LinkPropertiesTest.java b/tests/net/common/java/android/net/LinkPropertiesTest.java
index 0fc9be3..6eba62e 100644
--- a/tests/net/common/java/android/net/LinkPropertiesTest.java
+++ b/tests/net/common/java/android/net/LinkPropertiesTest.java
@@ -16,6 +16,8 @@
package android.net;
+import static android.net.RouteInfo.RTN_THROW;
+import static android.net.RouteInfo.RTN_UNICAST;
import static android.net.RouteInfo.RTN_UNREACHABLE;
import static com.android.testutils.ParcelUtilsKt.assertParcelSane;
@@ -1282,4 +1284,20 @@
assertTrue(lp.hasIpv6UnreachableDefaultRoute());
assertFalse(lp.hasIpv4UnreachableDefaultRoute());
}
+
+ @Test @IgnoreUpTo(Build.VERSION_CODES.Q)
+ public void testRouteAddWithSameKey() throws Exception {
+ LinkProperties lp = new LinkProperties();
+ lp.setInterfaceName("wlan0");
+ final IpPrefix v6 = new IpPrefix("64:ff9b::/96");
+ lp.addRoute(new RouteInfo(v6, address("fe80::1"), "wlan0", RTN_UNICAST, 1280));
+ assertEquals(1, lp.getRoutes().size());
+ lp.addRoute(new RouteInfo(v6, address("fe80::1"), "wlan0", RTN_UNICAST, 1500));
+ assertEquals(1, lp.getRoutes().size());
+ final IpPrefix v4 = new IpPrefix("192.0.2.128/25");
+ lp.addRoute(new RouteInfo(v4, address("192.0.2.1"), "wlan0", RTN_UNICAST, 1460));
+ assertEquals(2, lp.getRoutes().size());
+ lp.addRoute(new RouteInfo(v4, address("192.0.2.1"), "wlan0", RTN_THROW, 1460));
+ assertEquals(2, lp.getRoutes().size());
+ }
}
diff --git a/tests/net/common/java/android/net/RouteInfoTest.java b/tests/net/common/java/android/net/RouteInfoTest.java
index 8204b49..60cac0b 100644
--- a/tests/net/common/java/android/net/RouteInfoTest.java
+++ b/tests/net/common/java/android/net/RouteInfoTest.java
@@ -25,6 +25,7 @@
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
@@ -56,7 +57,7 @@
private static final int INVALID_ROUTE_TYPE = -1;
private InetAddress Address(String addr) {
- return InetAddress.parseNumericAddress(addr);
+ return InetAddresses.parseNumericAddress(addr);
}
private IpPrefix Prefix(String prefix) {
@@ -391,4 +392,43 @@
r = new RouteInfo(Prefix("0.0.0.0/0"), Address("0.0.0.0"), "wlan0");
assertEquals(0, r.getMtu());
}
+
+ @Test @IgnoreUpTo(Build.VERSION_CODES.Q)
+ public void testRouteKey() {
+ RouteInfo.RouteKey k1, k2;
+ // Only prefix, null gateway and null interface
+ k1 = new RouteInfo(Prefix("2001:db8::/128"), null).getRouteKey();
+ k2 = new RouteInfo(Prefix("2001:db8::/128"), null).getRouteKey();
+ assertEquals(k1, k2);
+ assertEquals(k1.hashCode(), k2.hashCode());
+
+ // With prefix, gateway and interface. Type and MTU does not affect RouteKey equality
+ k1 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0",
+ RTN_UNREACHABLE, 1450).getRouteKey();
+ k2 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0",
+ RouteInfo.RTN_UNICAST, 1400).getRouteKey();
+ assertEquals(k1, k2);
+ assertEquals(k1.hashCode(), k2.hashCode());
+
+ // Different scope IDs are ignored by the kernel, so we consider them equal here too.
+ k1 = new RouteInfo(Prefix("2001:db8::/64"), Address("fe80::1%1"), "wlan0").getRouteKey();
+ k2 = new RouteInfo(Prefix("2001:db8::/64"), Address("fe80::1%2"), "wlan0").getRouteKey();
+ assertEquals(k1, k2);
+ assertEquals(k1.hashCode(), k2.hashCode());
+
+ // Different prefix
+ k1 = new RouteInfo(Prefix("192.0.2.0/24"), null).getRouteKey();
+ k2 = new RouteInfo(Prefix("192.0.3.0/24"), null).getRouteKey();
+ assertNotEquals(k1, k2);
+
+ // Different gateway
+ k1 = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::1"), null).getRouteKey();
+ k2 = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::2"), null).getRouteKey();
+ assertNotEquals(k1, k2);
+
+ // Different interface
+ k1 = new RouteInfo(Prefix("ff02::1/128"), null, "tun0").getRouteKey();
+ k2 = new RouteInfo(Prefix("ff02::1/128"), null, "tun1").getRouteKey();
+ assertNotEquals(k1, k2);
+ }
}
diff --git a/tests/net/java/android/net/NetworkUtilsTest.java b/tests/net/java/android/net/NetworkUtilsTest.java
index 7748288..3158cc8 100644
--- a/tests/net/java/android/net/NetworkUtilsTest.java
+++ b/tests/net/java/android/net/NetworkUtilsTest.java
@@ -16,10 +16,24 @@
package android.net;
+import static android.system.OsConstants.AF_INET;
+import static android.system.OsConstants.AF_INET6;
+import static android.system.OsConstants.AF_UNIX;
+import static android.system.OsConstants.EPERM;
+import static android.system.OsConstants.SOCK_DGRAM;
+import static android.system.OsConstants.SOCK_STREAM;
+
import static junit.framework.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import android.system.ErrnoException;
+import android.system.Os;
+
import androidx.test.runner.AndroidJUnit4;
+import libcore.io.IoUtils;
+
import org.junit.Test;
import org.junit.runner.RunWith;
@@ -125,4 +139,50 @@
assertEquals(BigInteger.valueOf(7l - 4 + 4 + 16 + 65536),
NetworkUtils.routedIPv6AddressCount(set));
}
+
+ private static void expectSocketSuccess(String msg, int domain, int type) {
+ try {
+ IoUtils.closeQuietly(Os.socket(domain, type, 0));
+ } catch (ErrnoException e) {
+ fail(msg + e.getMessage());
+ }
+ }
+
+ private static void expectSocketPemissionError(String msg, int domain, int type) {
+ try {
+ IoUtils.closeQuietly(Os.socket(domain, type, 0));
+ fail(msg);
+ } catch (ErrnoException e) {
+ assertEquals(msg, e.errno, EPERM);
+ }
+ }
+
+ private static void expectHasNetworking() {
+ expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
+ AF_UNIX, SOCK_STREAM);
+ expectSocketSuccess("Creating a AF_INET socket shouldn't have thrown ErrnoException",
+ AF_INET, SOCK_DGRAM);
+ expectSocketSuccess("Creating a AF_INET6 socket shouldn't have thrown ErrnoException",
+ AF_INET6, SOCK_DGRAM);
+ }
+
+ private static void expectNoNetworking() {
+ expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
+ AF_UNIX, SOCK_STREAM);
+ expectSocketPemissionError(
+ "Creating a AF_INET socket should have thrown ErrnoException(EPERM)",
+ AF_INET, SOCK_DGRAM);
+ expectSocketPemissionError(
+ "Creating a AF_INET6 socket should have thrown ErrnoException(EPERM)",
+ AF_INET6, SOCK_DGRAM);
+ }
+
+ @Test
+ public void testSetAllowNetworkingForProcess() {
+ expectHasNetworking();
+ NetworkUtils.setAllowNetworkingForProcess(false);
+ expectNoNetworking();
+ NetworkUtils.setAllowNetworkingForProcess(true);
+ expectHasNetworking();
+ }
}