[trafficserver] branch quic-latest updated: Add stateless reset reasons on debug log

[masaori]

This is an automated email from the ASF dual-hosted git repository.

masaori pushed a commit to branch quic-latest
in repository https://gitbox.apache.org/repos/asf/trafficserver.git


The following commit(s) were added to refs/heads/quic-latest by this push:
     new a41605a  Add stateless reset reasons on debug log
a41605a is described below

commit a41605abef9b88cdd06aded881921434bd258c80
Author: Masaori Koshiba <masaori...@gmail.com>
AuthorDate: Tue Apr 16 12:44:32 2019 +0900

    Add stateless reset reasons on debug log
---
 iocore/net/QUICPacketHandler.cc | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/iocore/net/QUICPacketHandler.cc b/iocore/net/QUICPacketHandler.cc
index 0e1b329..f75e395 100644
--- a/iocore/net/QUICPacketHandler.cc
+++ b/iocore/net/QUICPacketHandler.cc
@@ -295,6 +295,17 @@ QUICPacketHandlerIn::_recv_packet(int event, UDPPacket 
*udp_packet)
   // Servers MUST drop incoming packets under all other circumstances. They 
SHOULD send a Stateless Reset (Section 6.10.4) if a
   // connection ID is present in the header.
   if ((!vc && !QUICInvariants::is_long_header(buf)) || (vc && 
vc->in_closed_queue)) {
+    if (is_debug_tag_set(debug_tag)) {
+      char dcid_str[QUICConnectionId::MAX_HEX_STR_LENGTH];
+      dcid.hex(dcid_str, QUICConnectionId::MAX_HEX_STR_LENGTH);
+
+      if (!vc && !QUICInvariants::is_long_header(buf)) {
+        QUICDebugDS(scid, dcid, "sent Stateless Reset : connection not found, 
dcid=%s", dcid_str);
+      } else if (vc && vc->in_closed_queue) {
+        QUICDebugDS(scid, dcid, "sent Stateless Reset : connection is already 
closed, dcid=%s", dcid_str);
+      }
+    }
+
     QUICStatelessResetToken token(dcid, params->instance_id());
     auto packet = QUICPacketFactory::create_stateless_reset_packet(dcid, 
token);
     this->_send_packet(*packet, udp_packet->getConnection(), udp_packet->from, 
1200, nullptr, 0);