1 files changed, 41 insertions, 0 deletions
diff --git a/src/feature/control/btrack_orconn.h b/src/feature/control/btrack_orconn.h
new file mode 100644
index 0000000000..8b3d8be37d
--- /dev/null
+++ b/src/feature/control/btrack_orconn.h
@@ -0,0 +1,41 @@
+/* Copyright (c) 2007-2020, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file btrack_orconn.h
+ * \brief Header file for btrack_orconn.c
+ **/
+
+#ifndef TOR_BTRACK_ORCONN_H
+#define TOR_BTRACK_ORCONN_H
+
+#include "lib/pubsub/pubsub.h"
+
+#ifdef BTRACK_ORCONN_PRIVATE
+
+#include "ht.h"
+
+/**
+ * Structure for tracking OR connection states
+ *
+ * This gets linked into two hash maps: one with connection IDs, and
+ * another with channel IDs.
+ **/
+typedef struct bt_orconn_t {
+  HT_ENTRY(bt_orconn_t) node;   /**< Hash map entry indexed by gid */
+  HT_ENTRY(bt_orconn_t) chan_node; /**< Hash map entry indexed by channel ID */
+  uint64_t gid;                    /**< Global ID of this ORCONN */
+  uint64_t chan;                   /**< Channel ID, if known */
+  int proxy_type;                  /**< Proxy type */
+  uint8_t state;                   /**< State of this ORCONN */
+  bool is_orig;             /**< Does this carry an origin circuit? */
+  bool is_onehop;           /**< Is this for a one-hop circuit? */
+} bt_orconn_t;
+
+#endif /* defined(BTRACK_ORCONN_PRIVATE) */
+
+int btrack_orconn_init(void);
+int btrack_orconn_add_pubsub(pubsub_connector_t *);
+void btrack_orconn_fini(void);
+
+#endif /* !defined(TOR_BTRACK_ORCONN_H) */