--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mgw/struct.h	Sat Jul 09 22:51:44 2022 -0800
@@ -0,0 +1,36 @@
+/*
+ * This header file defines internal data structures for themwi-mgw.
+ */
+
+struct bind_range_cfg {
+	struct in_addr	bind_ip;
+	unsigned	port_range_start;
+	unsigned	port_range_end;
+	unsigned	port_next;
+	unsigned	port_tries;
+};
+
+struct rtp_one_end {
+	int	rtp_fd;
+	int	rtcp_fd;
+	struct sockaddr_in bound_addr;
+	struct sockaddr_in remote_addr;
+};
+
+struct endpoint {
+	unsigned	ep_type;
+	struct rtp_one_end rtp_gsm;
+	struct rtp_one_end rtp_pstn;
+	unsigned	gsm_payload_type;
+	unsigned	gsm_payload_msg_type;
+	unsigned	pstn_payload_type;
+	unsigned	fwd_mode;
+	/* linked list management */
+	unsigned	ep_id;
+	struct endpoint	*next;
+};
+
+struct ctrl_conn {
+	struct endpoint	*endp_list;
+	unsigned	next_ep_id;
+};