1 files changed, 0 insertions, 88 deletions
diff --git a/common/device/com/android/net/module/util/netlink/NdOption.java b/common/device/com/android/net/module/util/netlink/NdOption.java
deleted file mode 100644
index defc88a7..00000000
--- a/common/device/com/android/net/module/util/netlink/NdOption.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright (C) 2020 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 androidx.annotation.NonNull;
-
-import java.nio.ByteBuffer;
-
-/**
- * Base class for IPv6 neighbour discovery options.
- */
-public class NdOption {
-    public static final int STRUCT_SIZE = 2;
-
-    /** The option type. */
-    public final byte type;
-    /** The length of the option in 8-byte units. Actually an unsigned 8-bit integer */
-    public final int length;
-
-    /** Constructs a new NdOption. */
-    NdOption(byte type, int length) {
-        this.type = type;
-        this.length = length;
-    }
-
-    /**
-     * Parses a neighbour discovery option.
-     *
-     * Parses (and consumes) the option if it is of a known type. If the option is of an unknown
-     * type, advances the buffer (so the caller can continue parsing if desired) and returns
-     * {@link #UNKNOWN}. If the option claims a length of 0, returns null because parsing cannot
-     * continue.
-     *
-     * No checks are performed on the length other than ensuring it is not 0, so if a caller wants
-     * to deal with options that might overflow the structure that contains them, it must explicitly
-     * set the buffer's limit to the position at which that structure ends.
-     *
-     * @param buf the buffer to parse.
-     * @return a subclass of {@link NdOption}, or {@code null} for an unknown or malformed option.
-     */
-    public static NdOption parse(@NonNull ByteBuffer buf) {
-        if (buf.remaining() < STRUCT_SIZE) return null;
-
-        // Peek the type without advancing the buffer.
-        byte type = buf.get(buf.position());
-        int length = Byte.toUnsignedInt(buf.get(buf.position() + 1));
-        if (length == 0) return null;
-
-        switch (type) {
-            case StructNdOptPref64.TYPE:
-                return StructNdOptPref64.parse(buf);
-
-            case StructNdOptRdnss.TYPE:
-                return StructNdOptRdnss.parse(buf);
-
-            default:
-                int newPosition = Math.min(buf.limit(), buf.position() + length * 8);
-                buf.position(newPosition);
-                return UNKNOWN;
-        }
-    }
-
-    void writeToByteBuffer(ByteBuffer buf) {
-        buf.put(type);
-        buf.put((byte) length);
-    }
-
-    @Override
-    public String toString() {
-        return String.format("NdOption(%d, %d)", Byte.toUnsignedInt(type), length);
-    }
-
-    public static final NdOption UNKNOWN = new NdOption((byte) 0, 0);
-}