instead of using the TLS session ID as session identifier prior to authentication use the webvpncontext cookie.

src/ipc.proto

@@ -26,7 +26,7 @@
  *
  * (worker terminates as client disconnects)
  *
- *               <------     AUTH_REINIT (password)
+ *               <------     AUTH_REINIT (password, sid)
  * AUTH_REP(ΟΚ)  ------>
  *
  */
@@ -40,7 +40,7 @@ message auth_init_msg
 	optional string cert_user_name = 4;
 	optional string cert_group_name = 5;
 	optional string hostname = 6;
-	required bytes session_id = 7; /* TLS */
+	optional bytes sid = 7;
 }
 
 /* AUTH_REINIT - used in cisco compatible clients, to
@@ -49,7 +49,7 @@ message auth_reinit_msg
 {
 	required bool tls_auth_ok = 1 [default = false];
 	required string password = 2;
-	required bytes session_id = 3;
+	required bytes sid = 3;
 }
 
 /* AUTH_COOKIE_REQ */