Merge "Add DHCP address lease expiry in IpMemoryStore." am: 17ea70c6d3 am: 23f6cd281a (60a54acb) · Commits · e / os / android_frameworks_base

packages/NetworkStack/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreDatabase.java

+43 −12

Original line number	Diff line number	Diff line
		@@ -72,6 +72,10 @@ public class IpMemoryStoreDatabase {
		public static final String COLNAME_ASSIGNEDV4ADDRESS = "assignedV4Address";
		public static final String COLTYPE_ASSIGNEDV4ADDRESS = "INTEGER";

		public static final String COLNAME_ASSIGNEDV4ADDRESSEXPIRY = "assignedV4AddressExpiry";
		// The lease expiry timestamp in uint of milliseconds
		public static final String COLTYPE_ASSIGNEDV4ADDRESSEXPIRY = "BIGINT";

		// Please note that the group hint is only a hint, hence its name. The client can offer
		// this information to nudge the grouping in the decision it thinks is right, but it can't
		// decide for the memory store what is the same L3 network.
		@@ -90,6 +94,7 @@ public class IpMemoryStoreDatabase {
		+ COLNAME_L2KEY + " " + COLTYPE_L2KEY + " PRIMARY KEY NOT NULL, "
		+ COLNAME_EXPIRYDATE + " " + COLTYPE_EXPIRYDATE + ", "
		+ COLNAME_ASSIGNEDV4ADDRESS + " " + COLTYPE_ASSIGNEDV4ADDRESS + ", "
		+ COLNAME_ASSIGNEDV4ADDRESSEXPIRY + " " + COLTYPE_ASSIGNEDV4ADDRESSEXPIRY + ", "
		+ COLNAME_GROUPHINT + " " + COLTYPE_GROUPHINT + ", "
		+ COLNAME_DNSADDRESSES + " " + COLTYPE_DNSADDRESSES + ", "
		+ COLNAME_MTU + " " + COLTYPE_MTU + ")";
		@@ -134,7 +139,7 @@ public class IpMemoryStoreDatabase {
		/** The SQLite DB helper */
		public static class DbHelper extends SQLiteOpenHelper {
		// Update this whenever changing the schema.
		private static final int SCHEMA_VERSION = 2;
		private static final int SCHEMA_VERSION = 3;
		private static final String DATABASE_FILENAME = "IpMemoryStore.db";

		public DbHelper(@NonNull final Context context) {
		@@ -153,11 +158,28 @@ public class IpMemoryStoreDatabase {
		@Override
		public void onUpgrade(@NonNull final SQLiteDatabase db, final int oldVersion,
		final int newVersion) {
		// No upgrade supported yet.
		try {
		if (oldVersion < 2) {
		// upgrade from version 1 to version 2
		// since we starts from version 2, do nothing here
		}

		if (oldVersion < 3) {
		// upgrade from version 2 to version 3
		final String sqlUpgradeAddressExpiry = "alter table"
		+ " " + NetworkAttributesContract.TABLENAME + " ADD"
		+ " " + NetworkAttributesContract.COLNAME_ASSIGNEDV4ADDRESSEXPIRY
		+ " " + NetworkAttributesContract.COLTYPE_ASSIGNEDV4ADDRESSEXPIRY;
		db.execSQL(sqlUpgradeAddressExpiry);
		}
		} catch (SQLiteException e) {
		Log.e(TAG, "Could not upgrade to the new version", e);
		// create database with new version
		db.execSQL(NetworkAttributesContract.DROP_TABLE);
		db.execSQL(PrivateDataContract.DROP_TABLE);
		onCreate(db);
		}
		}

		/** Called when the database is downgraded */
		@Override
		@@ -204,6 +226,10 @@ public class IpMemoryStoreDatabase {
		values.put(NetworkAttributesContract.COLNAME_ASSIGNEDV4ADDRESS,
		inet4AddressToIntHTH(attributes.assignedV4Address));
		}
		if (null != attributes.assignedV4AddressExpiry) {
		values.put(NetworkAttributesContract.COLNAME_ASSIGNEDV4ADDRESSEXPIRY,
		attributes.assignedV4AddressExpiry);
		}
		if (null != attributes.groupHint) {
		values.put(NetworkAttributesContract.COLNAME_GROUPHINT, attributes.groupHint);
		}
		@@ -251,6 +277,8 @@ public class IpMemoryStoreDatabase {
		final NetworkAttributes.Builder builder = new NetworkAttributes.Builder();
		final int assignedV4AddressInt = getInt(cursor,
		NetworkAttributesContract.COLNAME_ASSIGNEDV4ADDRESS, 0);
		final long assignedV4AddressExpiry = getLong(cursor,
		NetworkAttributesContract.COLNAME_ASSIGNEDV4ADDRESSEXPIRY, 0);
		final String groupHint = getString(cursor, NetworkAttributesContract.COLNAME_GROUPHINT);
		final byte[] dnsAddressesBlob =
		getBlob(cursor, NetworkAttributesContract.COLNAME_DNSADDRESSES);
		@@ -258,6 +286,9 @@ public class IpMemoryStoreDatabase {
		if (0 != assignedV4AddressInt) {
		builder.setAssignedV4Address(intToInet4AddressHTH(assignedV4AddressInt));
		}
		if (0 != assignedV4AddressExpiry) {
		builder.setAssignedV4AddressExpiry(assignedV4AddressExpiry);
		}
		builder.setGroupHint(groupHint);
		if (null != dnsAddressesBlob) {
		builder.setDnsAddresses(decodeAddressList(dnsAddressesBlob));

packages/NetworkStack/tests/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreServiceTest.java

+4 −1

Original line number	Diff line number	Diff line
		@@ -228,6 +228,7 @@ public class IpMemoryStoreServiceTest {
		public void testNetworkAttributes() throws UnknownHostException {
		final NetworkAttributes.Builder na = new NetworkAttributes.Builder();
		na.setAssignedV4Address((Inet4Address) Inet4Address.getByName("1.2.3.4"));
		na.setAssignedV4AddressExpiry(System.currentTimeMillis() + 7_200_000);
		na.setGroupHint("hint1");
		na.setMtu(219);
		final String l2Key = FAKE_KEYS[0];
		@@ -257,6 +258,8 @@ public class IpMemoryStoreServiceTest {
		+ status.resultCode, status.isSuccess());
		assertEquals(l2Key, key);
		assertEquals(attributes.assignedV4Address, attr.assignedV4Address);
		assertEquals(attributes.assignedV4AddressExpiry,
		attr.assignedV4AddressExpiry);
		assertEquals(attributes.groupHint, attr.groupHint);
		assertEquals(attributes.mtu, attr.mtu);
		assertEquals(attributes2.dnsAddresses, attr.dnsAddresses);
		@@ -278,7 +281,7 @@ public class IpMemoryStoreServiceTest {
		// Verify that this test does not miss any new field added later.
		// If any field is added to NetworkAttributes it must be tested here for storing
		// and retrieving.
		assertEquals(4, Arrays.stream(NetworkAttributes.class.getDeclaredFields())
		assertEquals(5, Arrays.stream(NetworkAttributes.class.getDeclaredFields())
		.filter(f -> !Modifier.isStatic(f.getModifiers())).count());
		}

services/net/java/android/net/ipmemorystore/NetworkAttributes.java

+49 −4

Original line number	Diff line number	Diff line
		@@ -60,6 +60,13 @@ public class NetworkAttributes {
		public final Inet4Address assignedV4Address;
		private static final float WEIGHT_ASSIGNEDV4ADDR = 300.0f;

		// The lease expiry timestamp of v4 address allocated from DHCP server, in milliseconds.
		@Nullable
		public final Long assignedV4AddressExpiry;
		// lease expiry doesn't imply any correlation between "the same lease expiry value" and "the
		// same L3 network".
		private static final float WEIGHT_ASSIGNEDV4ADDREXPIRY = 0.0f;

		// Optionally supplied by the client if it has an opinion on L3 network. For example, this
		// could be a hash of the SSID + security type on WiFi.
		@Nullable
		@@ -81,6 +88,7 @@ public class NetworkAttributes {
		/** @hide */
		@VisibleForTesting
		public static final float TOTAL_WEIGHT = WEIGHT_ASSIGNEDV4ADDR
		+ WEIGHT_ASSIGNEDV4ADDREXPIRY
		+ WEIGHT_GROUPHINT
		+ WEIGHT_DNSADDRESSES
		+ WEIGHT_MTU;
		@@ -89,11 +97,16 @@ public class NetworkAttributes {
		@VisibleForTesting
		public NetworkAttributes(
		@Nullable final Inet4Address assignedV4Address,
		@Nullable final Long assignedV4AddressExpiry,
		@Nullable final String groupHint,
		@Nullable final List<InetAddress> dnsAddresses,
		@Nullable final Integer mtu) {
		if (mtu != null && mtu < 0) throw new IllegalArgumentException("MTU can't be negative");
		if (assignedV4AddressExpiry != null && assignedV4AddressExpiry <= 0) {
		throw new IllegalArgumentException("lease expiry can't be negative or zero");
		}
		this.assignedV4Address = assignedV4Address;
		this.assignedV4AddressExpiry = assignedV4AddressExpiry;
		this.groupHint = groupHint;
		this.dnsAddresses = null == dnsAddresses ? null :
		Collections.unmodifiableList(new ArrayList<>(dnsAddresses));
		@@ -105,6 +118,8 @@ public class NetworkAttributes {
		// The call to the other constructor must be the first statement of this constructor,
		// so everything has to be inline
		this((Inet4Address) getByAddressOrNull(parcelable.assignedV4Address),
		parcelable.assignedV4AddressExpiry > 0
		? parcelable.assignedV4AddressExpiry : null,
		parcelable.groupHint,
		blobArrayToInetAddressList(parcelable.dnsAddresses),
		parcelable.mtu >= 0 ? parcelable.mtu : null);
		@@ -150,6 +165,8 @@ public class NetworkAttributes {
		final NetworkAttributesParcelable parcelable = new NetworkAttributesParcelable();
		parcelable.assignedV4Address =
		(null == assignedV4Address) ? null : assignedV4Address.getAddress();
		parcelable.assignedV4AddressExpiry =
		(null == assignedV4AddressExpiry) ? 0 : assignedV4AddressExpiry;
		parcelable.groupHint = groupHint;
		parcelable.dnsAddresses = inetAddressListToBlobArray(dnsAddresses);
		parcelable.mtu = (null == mtu) ? -1 : mtu;
		@@ -168,6 +185,8 @@ public class NetworkAttributes {
		public float getNetworkGroupSamenessConfidence(@NonNull final NetworkAttributes o) {
		final float samenessScore =
		samenessContribution(WEIGHT_ASSIGNEDV4ADDR, assignedV4Address, o.assignedV4Address)
		+ samenessContribution(WEIGHT_ASSIGNEDV4ADDREXPIRY, assignedV4AddressExpiry,
		o.assignedV4AddressExpiry)
		+ samenessContribution(WEIGHT_GROUPHINT, groupHint, o.groupHint)
		+ samenessContribution(WEIGHT_DNSADDRESSES, dnsAddresses, o.dnsAddresses)
		+ samenessContribution(WEIGHT_MTU, mtu, o.mtu);
		@@ -189,6 +208,8 @@ public class NetworkAttributes {
		@Nullable
		private Inet4Address mAssignedAddress;
		@Nullable
		private Long mAssignedAddressExpiry;
		@Nullable
		private String mGroupHint;
		@Nullable
		private List<InetAddress> mDnsAddresses;
		@@ -205,6 +226,20 @@ public class NetworkAttributes {
		return this;
		}

		/**
		* Set the lease expiry timestamp of assigned v4 address.
		* @param assignedV4AddressExpiry The lease expiry timestamp of assigned v4 address.
		* @return This builder.
		*/
		public Builder setAssignedV4AddressExpiry(
		@Nullable final Long assignedV4AddressExpiry) {
		if (null != assignedV4AddressExpiry && assignedV4AddressExpiry <= 0) {
		throw new IllegalArgumentException("lease expiry can't be negative or zero");
		}
		mAssignedAddressExpiry = assignedV4AddressExpiry;
		return this;
		}

		/**
		* Set the group hint.
		* @param groupHint The group hint.
		@@ -248,14 +283,15 @@ public class NetworkAttributes {
		* @return The built NetworkAttributes object.
		*/
		public NetworkAttributes build() {
		return new NetworkAttributes(mAssignedAddress, mGroupHint, mDnsAddresses, mMtu);
		return new NetworkAttributes(mAssignedAddress, mAssignedAddressExpiry,
		mGroupHint, mDnsAddresses, mMtu);
		}
		}

		/** @hide */
		public boolean isEmpty() {
		return (null == assignedV4Address) && (null == groupHint)
		&& (null == dnsAddresses) && (null == mtu);
		return (null == assignedV4Address) && (null == assignedV4AddressExpiry)
		&& (null == groupHint) && (null == dnsAddresses) && (null == mtu);
		}

		@Override
		@@ -263,6 +299,7 @@ public class NetworkAttributes {
		if (!(o instanceof NetworkAttributes)) return false;
		final NetworkAttributes other = (NetworkAttributes) o;
		return Objects.equals(assignedV4Address, other.assignedV4Address)
		&& Objects.equals(assignedV4AddressExpiry, other.assignedV4AddressExpiry)
		&& Objects.equals(groupHint, other.groupHint)
		&& Objects.equals(dnsAddresses, other.dnsAddresses)
		&& Objects.equals(mtu, other.mtu);
		@@ -270,7 +307,8 @@ public class NetworkAttributes {

		@Override
		public int hashCode() {
		return Objects.hash(assignedV4Address, groupHint, dnsAddresses, mtu);
		return Objects.hash(assignedV4Address, assignedV4AddressExpiry,
		groupHint, dnsAddresses, mtu);
		}

		/** Pretty print */
		@@ -286,6 +324,13 @@ public class NetworkAttributes {
		nullFields.add("assignedV4Addr");
		}

		if (null != assignedV4AddressExpiry) {
		resultJoiner.add("assignedV4AddressExpiry :");
		resultJoiner.add(assignedV4AddressExpiry.toString());
		} else {
		nullFields.add("assignedV4AddressExpiry");
		}

		if (null != groupHint) {
		resultJoiner.add("groupHint :");
		resultJoiner.add(groupHint);

services/net/java/android/net/ipmemorystore/NetworkAttributesParcelable.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@ import android.net.ipmemorystore.Blob;
		*/
		parcelable NetworkAttributesParcelable {
		byte[] assignedV4Address;
		long assignedV4AddressExpiry;
		String groupHint;
		Blob[] dnsAddresses;
		int mtu;

tests/net/java/android/net/ipmemorystore/ParcelableTests.java

+4 −1

Original line number	Diff line number	Diff line
		@@ -44,6 +44,8 @@ public class ParcelableTests {
		assertEquals(in, new NetworkAttributes(parcelingRoundTrip(in.toParcelable())));

		builder.setAssignedV4Address((Inet4Address) Inet4Address.getByName("1.2.3.4"));
		// lease will expire in two hours
		builder.setAssignedV4AddressExpiry(System.currentTimeMillis() + 7_200_000);
		// groupHint stays null this time around
		builder.setDnsAddresses(Collections.emptyList());
		builder.setMtu(18);
		@@ -51,6 +53,7 @@ public class ParcelableTests {
		assertEquals(in, new NetworkAttributes(parcelingRoundTrip(in.toParcelable())));

		builder.setAssignedV4Address((Inet4Address) Inet4Address.getByName("6.7.8.9"));
		builder.setAssignedV4AddressExpiry(System.currentTimeMillis() + 3_600_000);
		builder.setGroupHint("groupHint");
		builder.setDnsAddresses(Arrays.asList(
		InetAddress.getByName("ACA1:652B:0911:DE8F:1200:115E:913B:AA2A"),
		@@ -66,7 +69,7 @@ public class ParcelableTests {
		// Verify that this test does not miss any new field added later.
		// If any field is added to NetworkAttributes it must be tested here for parceling
		// roundtrip.
		assertEquals(4, Arrays.stream(NetworkAttributes.class.getDeclaredFields())
		assertEquals(5, Arrays.stream(NetworkAttributes.class.getDeclaredFields())
		.filter(f -> !Modifier.isStatic(f.getModifiers())).count());
		}