From 79241088c7e1b5b4c58dde5f113dde80e89d5582 Mon Sep 17 00:00:00 2001 From: Sarah Chin Date: Thu, 6 Aug 2020 17:37:40 -0700 Subject: [PATCH] Add config to use lower of IPv4/IPv6 MTU values Test: atest DataConnectionTest Bug: 162285224 Change-Id: Ic0afdfabec3a13a4a1d3fd34e7e02d4df3a06ea5 Merged-In: Ic0afdfabec3a13a4a1d3fd34e7e02d4df3a06ea5 --- .../java/android/telephony/CarrierConfigManager.java | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java index f2dae237b627a..235b094745378 100755 --- a/telephony/java/android/telephony/CarrierConfigManager.java +++ b/telephony/java/android/telephony/CarrierConfigManager.java @@ -3923,6 +3923,16 @@ public class CarrierConfigManager { public static final String KEY_DEFAULT_PREFERRED_APN_NAME_STRING = "default_preferred_apn_name_string"; + /** + * For Android 11, provide a temporary solution for OEMs to use the lower of the two MTU values + * for IPv4 and IPv6 if both are sent. + * TODO: remove in later release + * + * @hide + */ + public static final String KEY_USE_LOWER_MTU_VALUE_IF_BOTH_RECEIVED = + "use_lower_mtu_value_if_both_received"; + /** The default value for every variable. */ private final static PersistableBundle sDefaults; @@ -4463,6 +4473,7 @@ public class CarrierConfigManager { sDefaults.putStringArray(KEY_MISSED_INCOMING_CALL_SMS_PATTERN_STRING_ARRAY, new String[0]); sDefaults.putBoolean(KEY_DISABLE_DUN_APN_WHILE_ROAMING_WITH_PRESET_APN_BOOL, false); sDefaults.putString(KEY_DEFAULT_PREFERRED_APN_NAME_STRING, ""); + sDefaults.putBoolean(KEY_USE_LOWER_MTU_VALUE_IF_BOTH_RECEIVED, false); } /**