1 files changed, 123 insertions, 0 deletions
diff --git a/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_log.h b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_log.h
new file mode 100644
index 0000000..029ef1b
--- /dev/null
+++ b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_log.h
@@ -0,0 +1,123 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2018 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGTCP2_LOG_H
+#define NGTCP2_LOG_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <ngtcp2/ngtcp2.h>
+
+#include "ngtcp2_pkt.h"
+
+typedef struct ngtcp2_log {
+  /* log_printf is a sink to write log.  NULL means no logging
+     output. */
+  ngtcp2_printf log_printf;
+  /* ts is the time point used to write time delta in the log. */
+  ngtcp2_tstamp ts;
+  /* last_ts is the most recent time point that this object is
+     told. */
+  ngtcp2_tstamp last_ts;
+  /* user_data is user-defined opaque data which is passed to
+     log_pritnf. */
+  void *user_data;
+  /* scid is SCID encoded as NULL-terminated hex string. */
+  uint8_t scid[NGTCP2_MAX_CIDLEN * 2 + 1];
+} ngtcp2_log;
+
+/**
+ * @enum
+ *
+ * :type:`ngtcp2_log_event` defines an event of ngtcp2 library
+ * internal logger.
+ */
+typedef enum ngtcp2_log_event {
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_NONE` represents no event.
+   */
+  NGTCP2_LOG_EVENT_NONE,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_CON` is a connection (catch-all) event
+   */
+  NGTCP2_LOG_EVENT_CON,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_PKT` is a packet event.
+   */
+  NGTCP2_LOG_EVENT_PKT,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_FRM` is a QUIC frame event.
+   */
+  NGTCP2_LOG_EVENT_FRM,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_RCV` is a congestion and recovery event.
+   */
+  NGTCP2_LOG_EVENT_RCV,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_CRY` is a crypto event.
+   */
+  NGTCP2_LOG_EVENT_CRY,
+  /**
+   * :enum:`NGTCP2_LOG_EVENT_PTV` is a path validation event.
+   */
+  NGTCP2_LOG_EVENT_PTV,
+} ngtcp2_log_event;
+
+void ngtcp2_log_init(ngtcp2_log *log, const ngtcp2_cid *scid,
+                     ngtcp2_printf log_printf, ngtcp2_tstamp ts,
+                     void *user_data);
+
+void ngtcp2_log_rx_fr(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
+                      const ngtcp2_frame *fr);
+void ngtcp2_log_tx_fr(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
+                      const ngtcp2_frame *fr);
+
+void ngtcp2_log_rx_vn(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
+                      const uint32_t *sv, size_t nsv);
+
+void ngtcp2_log_rx_sr(ngtcp2_log *log, const ngtcp2_pkt_stateless_reset *sr);
+
+void ngtcp2_log_remote_tp(ngtcp2_log *log, uint8_t exttype,
+                          const ngtcp2_transport_params *params);
+
+void ngtcp2_log_pkt_lost(ngtcp2_log *log, int64_t pkt_num, uint8_t type,
+                         uint8_t flags, ngtcp2_tstamp sent_ts);
+
+void ngtcp2_log_rx_pkt_hd(ngtcp2_log *log, const ngtcp2_pkt_hd *hd);
+
+void ngtcp2_log_tx_pkt_hd(ngtcp2_log *log, const ngtcp2_pkt_hd *hd);
+
+void ngtcp2_log_tx_cancel(ngtcp2_log *log, const ngtcp2_pkt_hd *hd);
+
+/**
+ * @function
+ *
+ * `ngtcp2_log_info` writes info level log.
+ */
+void ngtcp2_log_info(ngtcp2_log *log, ngtcp2_log_event ev, const char *fmt,
+                     ...);
+
+#endif /* NGTCP2_LOG_H */