diff options
Diffstat (limited to 'packages/Tethering/src/android/net/util/PrefixUtils.java')
-rw-r--r-- | packages/Tethering/src/android/net/util/PrefixUtils.java | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/packages/Tethering/src/android/net/util/PrefixUtils.java b/packages/Tethering/src/android/net/util/PrefixUtils.java deleted file mode 100644 index f203e9995f3d..000000000000 --- a/packages/Tethering/src/android/net/util/PrefixUtils.java +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 2017 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 android.net.util; - -import android.net.IpPrefix; -import android.net.LinkAddress; -import android.net.LinkProperties; - -import java.net.Inet4Address; -import java.net.InetAddress; -import java.util.Collections; -import java.util.HashSet; -import java.util.Set; - - -/** - * @hide - */ -public class PrefixUtils { - private static final IpPrefix[] MIN_NON_FORWARDABLE_PREFIXES = { - pfx("127.0.0.0/8"), // IPv4 loopback - pfx("169.254.0.0/16"), // IPv4 link-local, RFC3927#section-8 - pfx("::/3"), - pfx("fe80::/64"), // IPv6 link-local - pfx("fc00::/7"), // IPv6 ULA - pfx("ff02::/8"), // IPv6 link-local multicast - }; - - public static final IpPrefix DEFAULT_WIFI_P2P_PREFIX = pfx("192.168.49.0/24"); - - /** Get non forwardable prefixes. */ - public static Set<IpPrefix> getNonForwardablePrefixes() { - final HashSet<IpPrefix> prefixes = new HashSet<>(); - addNonForwardablePrefixes(prefixes); - return prefixes; - } - - /** Add non forwardable prefixes. */ - public static void addNonForwardablePrefixes(Set<IpPrefix> prefixes) { - Collections.addAll(prefixes, MIN_NON_FORWARDABLE_PREFIXES); - } - - /** Get local prefixes from |lp|. */ - public static Set<IpPrefix> localPrefixesFrom(LinkProperties lp) { - final HashSet<IpPrefix> localPrefixes = new HashSet<>(); - if (lp == null) return localPrefixes; - - for (LinkAddress addr : lp.getAllLinkAddresses()) { - if (addr.getAddress().isLinkLocalAddress()) continue; - localPrefixes.add(asIpPrefix(addr)); - } - // TODO: Add directly-connected routes as well (ones from which we did - // not also form a LinkAddress)? - - return localPrefixes; - } - - /** Convert LinkAddress |addr| to IpPrefix. */ - public static IpPrefix asIpPrefix(LinkAddress addr) { - return new IpPrefix(addr.getAddress(), addr.getPrefixLength()); - } - - /** Convert InetAddress |ip| to IpPrefix. */ - public static IpPrefix ipAddressAsPrefix(InetAddress ip) { - final int bitLength = (ip instanceof Inet4Address) - ? NetworkConstants.IPV4_ADDR_BITS - : NetworkConstants.IPV6_ADDR_BITS; - return new IpPrefix(ip, bitLength); - } - - private static IpPrefix pfx(String prefixStr) { - return new IpPrefix(prefixStr); - } -} |