Document use of the ExtensionBitV2Upgrade reserved bit

anacrolix · Mar 21, 2024 · 5ddf300 · 5ddf300
1 parent 48f27c6
commit 5ddf300
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/peer_protocol/handshake.go b/peer_protocol/handshake.go
@@ -22,7 +22,7 @@ const (
 	ExtensionBitFast = 2 // http://www.bittorrent.org/beps/bep_0006.html
 	// A peer connection initiator can set this when sending a v1 infohash during handshake if they
 	// allow the receiving end to upgrade to v2 by responding with the corresponding v2 infohash.
-	// BEP 52, and BEP 4
+	// BEP 52, and BEP 4. TODO: Set by default and then clear it when it's not appropriate to send.
 	ExtensionBitV2Upgrade                    = 4
 	ExtensionBitAzureusExtensionNegotiation1 = 16
 	ExtensionBitAzureusExtensionNegotiation2 = 17