Prop. 159 add Relay Response block to Hole Punch message

i2p2www/spec/proposals/159-ssu2.rst

@@ -4980,6 +4980,7 @@ Payload
 ```````
 - DateTime block
 - Address block
+- Relay Response block
 - Padding block (optional)
 
 The minimum payload size is 8 bytes. Since the DateTime and Address blocks
@@ -5566,7 +5567,8 @@ RelayResponse
 ``````````````
 
 Sent in a Data message in-session, from Charlie to Bob
-or from Bob to Alice.
+or from Bob to Alice, AND in the Hole Punch message
+from Charlie to Alice.
 See Relay Process section below.
 
 
@@ -7162,6 +7164,14 @@ IPv4 and IPv6 introductions are supported.
 A Relay Request may be sent over an IPv4 session for an IPv6 introduction,
 and a Relay Request may be sent over an IPv6 session for an IPv4 introduction.
 
+As in SSU 1 (but may not be well-documented in those specifications),
+Alice should initiate the handshake with Charlie after receiving
+EITHER the Relay Response from Bob OR the Hole Punch from Charlie,
+which may be received in either order.
+SSU2 makes the Hole Punch easier to process by making it a new
+message with defined connection IDs and contents.
+The Relay Response (Data message) and Hole Punch message both contain the identical
+signed Relay Response block.
 
 
 Published Router Info