add required extra options for obfs4-hop pt

1 files changed, 10 insertions, 0 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java b/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
index 4d90798d..90ffb6b0 100644
--- a/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
+++ b/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
@@ -381,6 +381,7 @@ public class VpnConfigGenerator {
 
         stringBuilder.append(getRouteString(ipAddress, transport));
         stringBuilder.append(getRemoteString(ipAddress, transport));
+        stringBuilder.append(getExtraOptions(transport));
     }
 
     public String getRemoteString(String ipAddress, Transport transport) {
@@ -401,6 +402,15 @@ public class VpnConfigGenerator {
         return REMOTE + " " + DISPATCHER_IP + " " + DISPATCHER_PORT + " tcp" + newLine;
     }
 
+    public String getExtraOptions(Transport transport) {
+        if (transport.getTransportType() == OBFS4_HOP) {
+            return "replay-window 65535" + newLine +
+                    "ping-restart 300" + newLine +
+                    "tun-mtu 48000" + newLine;
+        }
+        return "";
+    }
+
     public String getRouteString(String ipAddress, Transport transport) {
         if (useObfuscationPinning) {
             return "route " + obfuscationPinningIP + " 255.255.255.255 net_gateway" + newLine;