maskit commented on code in PR #12961:
URL: https://github.com/apache/trafficserver/pull/12961#discussion_r2934395958


##########
src/iocore/net/NetVConnection.cc:
##########
@@ -53,9 +54,17 @@ DbgCtl dbg_ctl_ssl{"ssl"};
 bool
 NetVConnection::has_proxy_protocol(IOBufferReader *reader)
 {
-  char           buf[PPv1_CONNECTION_HEADER_LEN_MAX + 1];
   swoc::TextView tv;
-  tv.assign(buf, reader->memcpy(buf, sizeof(buf), 0));
+
+  char preface[PPv2_CONNECTION_HEADER_LEN];
+  tv.assign(preface, reader->memcpy(preface, sizeof(preface), 0));
+  if (!proxy_protocol_detect(tv)) {
+    return false;
+  }
+
+  int  bufsize = 
RecGetRecordInt("proxy.config.proxy_protocol.max_header_size").value_or(PPv1_CONNECTION_HEADER_LEN_MAX
 + 1);
+  char buf[bufsize];
+  tv.assign(buf, reader->memcpy(buf, bufsize, 0));

Review Comment:
   There is no way to send TLV.



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