commit e50bee1b98e42b4297c464b155533d16d29b32c5
author Xiao Ma <xiaom@google.com> Wed Jan 27 16:49:27 2021 +0000
committer Xiao Ma <xiaom@google.com> Tue Feb 09 02:10:56 2021 +0000
tree 14c9d0c077dedd906b3278aa7279f8d7c6719aa5
parent f51099dae345f89d70a71d364d5534fdfecf3d1b

Add the constant for IPv6 all-routers/nodes/hosts multicast address.

Also remove the DEFAULT_LINK_MTU constant, it's dup with ETHER_MTU.
The caller should select the appropriate MTU based on specific link
layer MTU.

Bug: 138926174
Test: atest NetworkStackIntegrationTest
Change-Id: I85e2c487298efaa0032eff3914029801580bb2c4

staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java

diff --git a/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java b/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
index a227505..0cbb65c 100644
--- a/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
+++ b/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
@@ -16,7 +16,10 @@
 
 package com.android.net.module.util;
 
+import android.net.InetAddresses;
+
 import java.net.Inet4Address;
+import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 
@@ -51,8 +54,6 @@
             (byte) 0xff, (byte) 0xff, (byte) 0xff,
     };
 
-    public static final int DEFAULT_LINK_MTU = 1500;
-
     /**
      * ARP constants.
      *
@@ -112,6 +113,12 @@
     public static final int IPV6_SRC_ADDR_OFFSET = 8;
     public static final int IPV6_DST_ADDR_OFFSET = 24;
     public static final int IPV6_MIN_MTU = 1280;
+    public static final Inet6Address IPV6_ADDR_ALL_NODES_MULTICAST =
+            (Inet6Address) InetAddresses.parseNumericAddress("ff02::1");
+    public static final Inet6Address IPV6_ADDR_ALL_ROUTERS_MULTICAST =
+            (Inet6Address) InetAddresses.parseNumericAddress("ff02::2");
+    public static final Inet6Address IPV6_ADDR_ALL_HOSTS_MULTICAST =
+            (Inet6Address) InetAddresses.parseNumericAddress("ff02::3");
 
     /**
      * ICMPv6 constants.