From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 3 Sep 2024 05:18:54 +0000 (+1000)
Subject: tracker/udp: Reset connection ID on error response
X-Git-Tag: v1.57.0~1
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=2a77ecd5e7f2974c60752dc6d2630a299835b09f;p=btrtrc.git

tracker/udp: Reset connection ID on error response
---

diff --git a/tracker/udp/client.go b/tracker/udp/client.go
index 077cc7a4..4664643d 100644
--- a/tracker/udp/client.go
+++ b/tracker/udp/client.go
@@ -225,6 +225,9 @@ func (cl *Client) request(
 			// udp://tracker.torrent.eu.org:451/announce frequently returns "Connection ID
 			// missmatch.\x00"
 			err = ErrorResponse{Message: string(dr.Body)}
+			// Force a reconnection. Probably any error is worth doing this for, but the one we're
+			// specifically interested in is ConnectionIdMissmatchNul.
+			cl.connIdIssued = time.Time{}
 		} else {
 			err = fmt.Errorf("unexpected response action %v", dr.Header.Action)
 		}