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-rw-r--r--common/device/com/android/net/module/util/TcUtils.java104
1 files changed, 0 insertions, 104 deletions
diff --git a/common/device/com/android/net/module/util/TcUtils.java b/common/device/com/android/net/module/util/TcUtils.java
deleted file mode 100644
index 9d2fb7f9..00000000
--- a/common/device/com/android/net/module/util/TcUtils.java
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2022 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;
-
-import java.io.IOException;
-
-/**
- * Contains mostly tc-related functionality.
- */
-public class TcUtils {
- static {
- System.loadLibrary(JniUtil.getJniLibraryName(TcUtils.class.getPackage()));
- }
-
- /**
- * Checks if the network interface uses an ethernet L2 header.
- *
- * @param iface the network interface.
- * @return true if the interface uses an ethernet L2 header.
- * @throws IOException
- */
- public static native boolean isEthernet(String iface) throws IOException;
-
- /**
- * Attach a tc bpf filter.
- *
- * Equivalent to the following 'tc' command:
- * tc filter add dev .. in/egress prio .. protocol ipv6/ip bpf object-pinned
- * /sys/fs/bpf/... direct-action
- *
- * @param ifIndex the network interface index.
- * @param ingress ingress or egress qdisc.
- * @param prio
- * @param proto
- * @param bpfProgPath
- * @throws IOException
- */
- public static native void tcFilterAddDevBpf(int ifIndex, boolean ingress, short prio,
- short proto, String bpfProgPath) throws IOException;
-
- /**
- * Attach a tc police action.
- *
- * Attaches a matchall filter to the clsact qdisc with a tc police and tc bpf action attached.
- * This causes the ingress rate to be limited and exceeding packets to be forwarded to a bpf
- * program (specified in bpfProgPah) that accounts for the packets before dropping them.
- *
- * Equivalent to the following 'tc' command:
- * tc filter add dev .. ingress prio .. protocol .. matchall \
- * action police rate .. burst .. conform-exceed pipe/continue \
- * action bpf object-pinned .. \
- * drop
- *
- * @param ifIndex the network interface index.
- * @param prio the filter preference.
- * @param proto protocol.
- * @param rateInBytesPerSec rate limit in bytes/s.
- * @param bpfProgPath bpg program that accounts for rate exceeding packets before they are
- * dropped.
- * @throws IOException
- */
- public static native void tcFilterAddDevIngressPolice(int ifIndex, short prio, short proto,
- int rateInBytesPerSec, String bpfProgPath) throws IOException;
-
- /**
- * Delete a tc filter.
- *
- * Equivalent to the following 'tc' command:
- * tc filter del dev .. in/egress prio .. protocol ..
- *
- * @param ifIndex the network interface index.
- * @param ingress ingress or egress qdisc.
- * @param prio the filter preference.
- * @param proto protocol.
- * @throws IOException
- */
- public static native void tcFilterDelDev(int ifIndex, boolean ingress, short prio,
- short proto) throws IOException;
-
- /**
- * Add a clsact qdisc.
- *
- * Equivalent to the following 'tc' command:
- * tc qdisc add dev .. clsact
- *
- * @param ifIndex the network interface index.
- * @throws IOException
- */
- public static native void tcQdiscAddDevClsact(int ifIndex) throws IOException;
-}