Add DHCP Rapid Commit option(RFC4039) support in client side.

Bug: 122710829
Bug: 136216415
Test: atest FrameworksNetTests NetworkStackTests
Test: manual test
Change-Id: I384282b7efd0df0c4a6de7bdc1957048303ad88b

1 files changed, 24 insertions, 2 deletions

diff --git a/src/android/net/util/NetworkStackUtils.java b/src/android/net/util/NetworkStackUtils.java
index 541f9d8..4afc34b 100644
--- a/src/android/net/util/NetworkStackUtils.java
+++ b/src/android/net/util/NetworkStackUtils.java
@@ -107,6 +107,16 @@ public class NetworkStackUtils {
      */
     public static final int CAPTIVE_PORTAL_MODE_AVOID = 2;
 
+    /**
+     * Experiment flag to enable DHCP INIT-REBOOT state, default value is false.
+     */
+    public static final String DHCP_INIT_REBOOT_ENABLED = "dhcp_init_reboot_enabled";
+
+    /**
+     * Experiment flag to enable DHCP Rapid Commit option, default value is false.
+     */
+    public static final String DHCP_RAPID_COMMIT_ENABLED = "dhcp_rapid_commit_enabled";
+
     static {
         System.loadLibrary("networkstackutilsjni");
     }
@@ -181,8 +191,7 @@ public class NetworkStackUtils {
      * Look up the value of a property for a particular namespace from {@link DeviceConfig}.
      * @param namespace The namespace containing the property to look up.
      * @param name The name of the property to look up.
-     * @param defaultValue The value to return if the property does not exist or has no non-null
-     *                     value.
+     * @param defaultValue The value to return if the property does not exist or its value is null.
      * @return the corresponding value, or defaultValue if none exists.
      */
     public static int getDeviceConfigPropertyInt(@NonNull String namespace, @NonNull String name,
@@ -196,6 +205,19 @@ public class NetworkStackUtils {
     }
 
     /**
+     * Look up the value of a property for a particular namespace from {@link DeviceConfig}.
+     * @param namespace The namespace containing the property to look up.
+     * @param name The name of the property to look up.
+     * @param defaultValue The value to return if the property does not exist or its value is null.
+     * @return the corresponding value, or defaultValue if none exists.
+     */
+    public static boolean getDeviceConfigPropertyBoolean(@NonNull String namespace,
+            @NonNull String name, boolean defaultValue) {
+        String value = getDeviceConfigProperty(namespace, name, null /* defaultValue */);
+        return (value != null) ? Boolean.parseBoolean(value) : defaultValue;
+    }
+
+    /**
      * Attaches a socket filter that accepts DHCP packets to the given socket.
      */
     public static native void attachDhcpFilter(FileDescriptor fd) throws SocketException;