1 files changed, 0 insertions, 134 deletions
diff --git a/common/device/com/android/net/module/util/netlink/StructNdOptRdnss.java b/common/device/com/android/net/module/util/netlink/StructNdOptRdnss.java
deleted file mode 100644
index 6dee0c49..00000000
--- a/common/device/com/android/net/module/util/netlink/StructNdOptRdnss.java
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.net.module.util.netlink;
-
-import static com.android.net.module.util.NetworkStackConstants.IPV6_ADDR_LEN;
-
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-
-import com.android.net.module.util.Struct;
-import com.android.net.module.util.structs.RdnssOption;
-
-import java.net.Inet6Address;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.nio.BufferUnderflowException;
-import java.nio.ByteBuffer;
-import java.util.Objects;
-import java.util.StringJoiner;
-
-/**
- * The Recursive DNS Server Option. RFC 8106.
- *
- * 0                   1                   2                   3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |     Type      |     Length    |           Reserved            |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |                           Lifetime                            |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |                                                               |
- * :            Addresses of IPv6 Recursive DNS Servers            :
- * |                                                               |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
-public class StructNdOptRdnss extends NdOption {
-    private static final String TAG = StructNdOptRdnss.class.getSimpleName();
-    public static final int TYPE = 25;
-    // Length in 8-byte units, only if one IPv6 address included.
-    public static final byte MIN_OPTION_LEN = 3;
-
-    public final RdnssOption header;
-    @NonNull
-    public final Inet6Address[] servers;
-
-    public StructNdOptRdnss(@NonNull final Inet6Address[] servers, long lifetime) {
-        super((byte) TYPE, servers.length * 2 + 1);
-
-        Objects.requireNonNull(servers, "Recursive DNS Servers address array must not be null");
-        if (servers.length == 0) {
-            throw new IllegalArgumentException("DNS server address array must not be empty");
-        }
-
-        this.header = new RdnssOption((byte) TYPE, (byte) (servers.length * 2 + 1),
-                (short) 0 /* reserved */, lifetime);
-        this.servers = servers.clone();
-    }
-
-    /**
-     * Parses an RDNSS option from a {@link ByteBuffer}.
-     *
-     * @param buf The buffer from which to parse the option. The buffer's byte order must be
-     *            {@link java.nio.ByteOrder#BIG_ENDIAN}.
-     * @return the parsed option, or {@code null} if the option could not be parsed successfully.
-     */
-    public static StructNdOptRdnss parse(@NonNull ByteBuffer buf) {
-        if (buf == null || buf.remaining() < MIN_OPTION_LEN * 8) return null;
-        try {
-            final RdnssOption header = Struct.parse(RdnssOption.class, buf);
-            if (header.type != TYPE) {
-                throw new IllegalArgumentException("Invalid type " + header.type);
-            }
-            if (header.length < MIN_OPTION_LEN || (header.length % 2 == 0)) {
-                throw new IllegalArgumentException("Invalid length " + header.length);
-            }
-
-            final int numOfDnses = (header.length - 1) / 2;
-            final Inet6Address[] servers = new Inet6Address[numOfDnses];
-            for (int i = 0; i < numOfDnses; i++) {
-                byte[] rawAddress = new byte[IPV6_ADDR_LEN];
-                buf.get(rawAddress);
-                servers[i] = (Inet6Address) InetAddress.getByAddress(rawAddress);
-            }
-            return new StructNdOptRdnss(servers, header.lifetime);
-        } catch (IllegalArgumentException | BufferUnderflowException | UnknownHostException e) {
-            // Not great, but better than throwing an exception that might crash the caller.
-            // Convention in this package is that null indicates that the option was truncated
-            // or malformed, so callers must already handle it.
-            Log.d(TAG, "Invalid RDNSS option: " + e);
-            return null;
-        }
-    }
-
-    protected void writeToByteBuffer(ByteBuffer buf) {
-        header.writeToByteBuffer(buf);
-        for (int i = 0; i < servers.length; i++) {
-            buf.put(servers[i].getAddress());
-        }
-    }
-
-    /** Outputs the wire format of the option to a new big-endian ByteBuffer. */
-    public ByteBuffer toByteBuffer() {
-        final ByteBuffer buf = ByteBuffer.allocate(Struct.getSize(RdnssOption.class)
-                + servers.length * IPV6_ADDR_LEN);
-        writeToByteBuffer(buf);
-        buf.flip();
-        return buf;
-    }
-
-    @Override
-    @NonNull
-    public String toString() {
-        final StringJoiner sj = new StringJoiner(",", "[", "]");
-        for (int i = 0; i < servers.length; i++) {
-            sj.add(servers[i].getHostAddress());
-        }
-        return String.format("NdOptRdnss(%s,servers:%s)", header.toString(), sj.toString());
-    }
-}