From 7714902133496df29a46dc2001d81a8e069031a8 Mon Sep 17 00:00:00 2001
From: Max Inden <mail@max-inden.de>
Date: Sat, 20 Nov 2021 13:04:26 +0100
Subject: [PATCH] relay/DCUtR: Make message type field `required`

The `type` field of the DCUtR message definition should not be
`optional`, as a message without a `Type` is useless. Instead it should
be `required`.

See also circuit relay v2 specification using `required` for `type`.

```protobuf
message HopMessage {
  enum Type {
    RESERVE = 0;
    CONNECT = 1;
    STATUS = 2;
  }

  required Type type = 1;
```

```protobuf
message StopMessage {
  enum Type {
    CONNECT = 0;
    STATUS = 1;
  }

  required Type type = 1;
```
---
 relay/DCUtR.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/relay/DCUtR.md b/relay/DCUtR.md
index dfa3ffc1b..81836c718 100644
--- a/relay/DCUtR.md
+++ b/relay/DCUtR.md
@@ -2,7 +2,7 @@
 
 | Lifecycle Stage | Maturity      | Status | Latest Revision    |
 |-----------------|---------------|--------|--------------------|
-| 1A              | Working Draft | Active | r0, 2021-08-17     |
+| 1A              | Working Draft | Active | r1, 2021-11-20     |
 
 Authors: [@vyzo]
 
@@ -135,7 +135,7 @@ message HolePunch {
     SYNC = 300;
   }
 
-  optional Type type=1;
+  required Type type=1;
 
   repeated bytes ObsAddrs = 2;
 }