diff options
Diffstat (limited to 'common/device/com/android/net/module/util/ip/InterfaceController.java')
-rw-r--r-- | common/device/com/android/net/module/util/ip/InterfaceController.java | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/common/device/com/android/net/module/util/ip/InterfaceController.java b/common/device/com/android/net/module/util/ip/InterfaceController.java deleted file mode 100644 index 7277fec0..00000000 --- a/common/device/com/android/net/module/util/ip/InterfaceController.java +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Copyright (C) 2019 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.ip; - -import static android.net.INetd.IF_STATE_DOWN; -import static android.net.INetd.IF_STATE_UP; - -import android.net.INetd; -import android.net.InterfaceConfigurationParcel; -import android.net.LinkAddress; -import android.os.RemoteException; -import android.os.ServiceSpecificException; -import android.system.OsConstants; - -import com.android.net.module.util.SharedLog; - -import java.net.Inet4Address; -import java.net.InetAddress; - -/** - * Encapsulates the multiple IP configuration operations performed on an interface. - * - * TODO: refactor/eliminate the redundant ways to set and clear addresses. - * - * @hide - */ -public class InterfaceController { - private static final boolean DBG = false; - - private final String mIfName; - private final INetd mNetd; - private final SharedLog mLog; - - public InterfaceController(String ifname, INetd netd, SharedLog log) { - mIfName = ifname; - mNetd = netd; - mLog = log; - } - - /** - * Set the IPv4 address and also optionally bring the interface up or down. - */ - public boolean setInterfaceConfiguration(final LinkAddress ipv4Addr, - final Boolean setIfaceUp) { - if (!(ipv4Addr.getAddress() instanceof Inet4Address)) { - throw new IllegalArgumentException("Invalid or mismatched Inet4Address"); - } - // Note: currently netd only support INetd#IF_STATE_UP and #IF_STATE_DOWN. - // Other flags would be ignored. - - final InterfaceConfigurationParcel ifConfig = new InterfaceConfigurationParcel(); - ifConfig.ifName = mIfName; - ifConfig.ipv4Addr = ipv4Addr.getAddress().getHostAddress(); - ifConfig.prefixLength = ipv4Addr.getPrefixLength(); - // Netd ignores hwaddr in interfaceSetCfg. - ifConfig.hwAddr = ""; - if (setIfaceUp == null) { - // Empty array means no change. - ifConfig.flags = new String[0]; - } else { - // Netd ignores any flag that's not IF_STATE_UP or IF_STATE_DOWN in interfaceSetCfg. - ifConfig.flags = setIfaceUp.booleanValue() - ? new String[] {IF_STATE_UP} : new String[] {IF_STATE_DOWN}; - } - try { - mNetd.interfaceSetCfg(ifConfig); - } catch (RemoteException | ServiceSpecificException e) { - logError("Setting IPv4 address to %s/%d failed: %s", - ifConfig.ipv4Addr, ifConfig.prefixLength, e); - return false; - } - return true; - } - - /** - * Set the IPv4 address of the interface. - */ - public boolean setIPv4Address(final LinkAddress address) { - return setInterfaceConfiguration(address, null); - } - - /** - * Clear the IPv4Address of the interface. - */ - public boolean clearIPv4Address() { - return setIPv4Address(new LinkAddress("0.0.0.0/0")); - } - - private boolean setEnableIPv6(boolean enabled) { - try { - mNetd.interfaceSetEnableIPv6(mIfName, enabled); - } catch (RemoteException | ServiceSpecificException e) { - logError("%s IPv6 failed: %s", (enabled ? "enabling" : "disabling"), e); - return false; - } - return true; - } - - /** - * Enable IPv6 on the interface. - */ - public boolean enableIPv6() { - return setEnableIPv6(true); - } - - /** - * Disable IPv6 on the interface. - */ - public boolean disableIPv6() { - return setEnableIPv6(false); - } - - /** - * Enable or disable IPv6 privacy extensions on the interface. - * @param enabled Whether the extensions should be enabled. - */ - public boolean setIPv6PrivacyExtensions(boolean enabled) { - try { - mNetd.interfaceSetIPv6PrivacyExtensions(mIfName, enabled); - } catch (RemoteException | ServiceSpecificException e) { - logError("error %s IPv6 privacy extensions: %s", - (enabled ? "enabling" : "disabling"), e); - return false; - } - return true; - } - - /** - * Set IPv6 address generation mode on the interface. - * - * <p>IPv6 should be disabled before changing the mode. - */ - public boolean setIPv6AddrGenModeIfSupported(int mode) { - try { - mNetd.setIPv6AddrGenMode(mIfName, mode); - } catch (RemoteException e) { - logError("Unable to set IPv6 addrgen mode: %s", e); - return false; - } catch (ServiceSpecificException e) { - if (e.errorCode != OsConstants.EOPNOTSUPP) { - logError("Unable to set IPv6 addrgen mode: %s", e); - return false; - } - } - return true; - } - - /** - * Add an address to the interface. - */ - public boolean addAddress(LinkAddress addr) { - return addAddress(addr.getAddress(), addr.getPrefixLength()); - } - - /** - * Add an address to the interface. - */ - public boolean addAddress(InetAddress ip, int prefixLen) { - try { - mNetd.interfaceAddAddress(mIfName, ip.getHostAddress(), prefixLen); - } catch (ServiceSpecificException | RemoteException e) { - logError("failed to add %s/%d: %s", ip, prefixLen, e); - return false; - } - return true; - } - - /** - * Remove an address from the interface. - */ - public boolean removeAddress(InetAddress ip, int prefixLen) { - try { - mNetd.interfaceDelAddress(mIfName, ip.getHostAddress(), prefixLen); - } catch (ServiceSpecificException | RemoteException e) { - logError("failed to remove %s/%d: %s", ip, prefixLen, e); - return false; - } - return true; - } - - /** - * Remove all addresses from the interface. - */ - public boolean clearAllAddresses() { - try { - mNetd.interfaceClearAddrs(mIfName); - } catch (Exception e) { - logError("Failed to clear addresses: %s", e); - return false; - } - return true; - } - - private void logError(String fmt, Object... args) { - mLog.e(String.format(fmt, args)); - } -} |