diff options
Diffstat (limited to 'common/device/com/android/net/module/util/TcUtils.java')
-rw-r--r-- | common/device/com/android/net/module/util/TcUtils.java | 104 |
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; -} |