Relay messages from RTC proxy to user

src/data/call_signal.rs

@@ -24,6 +24,7 @@ pub enum CallSignal {
     Candidate(IceCandidate, webrtc_sdp::attribute_type::SdpAttribute),
 }
 
+/// New call signal from client
 pub struct NewUserCallSignal {
     pub call_hash: String,
 
@@ -34,6 +35,13 @@ pub struct NewUserCallSignal {
     pub raw_data: String,
 }
 
+/// New call signal from RTC relay
+pub struct NewRtcRelayMessage {
+    pub call_hash: String,
+    pub peer_id: String,
+    pub data: String,
+}
+
 impl SdpType {
     pub fn from_str(val: &str) -> Res<SdpType> {
         match val {