fix(icmp): drop all datagram which control type not zero

showwin · Nov 17, 2023 · 1c32d2f · 1c32d2f
1 parent dfe5b15
commit 1c32d2f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/speedtest/request.go b/speedtest/request.go
@@ -352,7 +352,7 @@ func (s *Server) ICMPPing(
 		}
 		buf := make([]byte, 20+echoOptionDataSize+8)
 		_, err = dialContext.Read(buf)
-		if err != nil {
+		if err != nil || buf[20] != 0x00 {
 			failTimes++
 			continue
 		}