--- a/src/Makefile	Sat Jul 06 16:51:53 2024 +0000
+++ b/src/Makefile	Sat Jul 06 17:32:26 2024 +0000
@@ -1,4 +1,4 @@
-OBJS=	twjit.o twjit_in.o twjit_out.o
+OBJS=	twjit.o twjit_in.o twjit_out.o twjit_vty.o
 LIB=	libtwrtp.a
 
 include ../config.defs

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/twjit_vty.c	Sat Jul 06 17:32:26 2024 +0000
@@ -0,0 +1,129 @@
+/*
+ * Themyscira Wireless jitter buffer implementation: vty configuration.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/vty/vty.h>
+#include <osmocom/vty/command.h>
+
+#include <themwi/rtp/twjit.h>
+
+int twrtp_jibuf_config_write(struct vty *vty,
+			     const struct twrtp_jibuf_config *conf,
+			     const char *name, const char *prefix)
+{
+	vty_out(vty, "%s%s%s", prefix, name ? : "twjit", VTY_NEWLINE);
+	vty_out(vty, "%s buffer-depth %u %u%s", prefix, conf->bd_start,
+		conf->bd_hiwat, VTY_NEWLINE);
+	vty_out(vty, "%s thinning-interval %u%s", prefix, conf->thinning_int,
+		VTY_NEWLINE);
+	vty_out(vty, "%s max-future-sec %u%s", prefix, conf->max_future_sec,
+		VTY_NEWLINE);
+
+	if (conf->start_min_delta) {
+		vty_out(vty, "%s start-min-delta %u%s", prefix,
+			conf->start_min_delta, VTY_NEWLINE);
+	}
+	if (conf->start_max_delta) {
+		vty_out(vty, "%s start-max-delta %u%s", prefix,
+			conf->start_max_delta, VTY_NEWLINE);
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_buffer_depth, cfg_buffer_depth_cmd,
+      "buffer-depth <2-65535> <2-65535>",
+      "Buffer depth configuration\n"
+      "Minimum fill required to start flow\n"
+      "High water mark fill level\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	unsigned bd_start = atoi(argv[0]);
+	unsigned bd_hiwat = atoi(argv[1]);
+
+	if (bd_hiwat < bd_start) {
+		vty_out(vty, "%% Error: high water mark cannot be less than starting level%s",
+			VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+	conf->bd_start = bd_start;
+	conf->bd_hiwat = bd_hiwat;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_thinning, cfg_thinning_cmd,
+      "thinning-interval <2-65535>",
+      "Standing queue thinning configuration\n"
+      "Drop every Nth packet\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->thinning_int = atoi(argv[0]);
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_max_future, cfg_max_future_cmd,
+      "max-future-sec <1-65535>",
+      "Guard against time traveler packets\n"
+      "Maximum permissible number of seconds into the future\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->max_future_sec = atoi(argv[0]);
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_start_min_delta, cfg_start_min_delta_cmd,
+      "start-min-delta <1-65535>",
+      "Minimum required delta in time-of-arrival to start flow\n"
+      "Time delta value in ms\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->start_min_delta = atoi(argv[0]);
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_start_min_delta, cfg_no_start_min_delta_cmd,
+      "no start-min-delta",
+      NO_STR "Minimum required delta in time-of-arrival to start flow\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->start_min_delta = 0;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_start_max_delta, cfg_start_max_delta_cmd,
+      "start-max-delta <1-65535>",
+      "Maximum permitted gap in time-of-arrival in starting state\n"
+      "Time delta value in ms\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->start_max_delta = atoi(argv[0]);
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_start_max_delta, cfg_no_start_max_delta_cmd,
+      "no start-max-delta",
+      NO_STR "Maximum permitted gap in time-of-arrival in starting state\n")
+{
+	struct twrtp_jibuf_config *conf = vty->index;
+	conf->start_max_delta = 0;
+	return CMD_SUCCESS;
+}
+
+void twrtp_jibuf_vty_init(int twjit_node)
+{
+	install_lib_element(twjit_node, &cfg_buffer_depth_cmd);
+	install_lib_element(twjit_node, &cfg_thinning_cmd);
+	install_lib_element(twjit_node, &cfg_max_future_cmd);
+	install_lib_element(twjit_node, &cfg_start_min_delta_cmd);
+	install_lib_element(twjit_node, &cfg_no_start_min_delta_cmd);
+	install_lib_element(twjit_node, &cfg_start_max_delta_cmd);
+	install_lib_element(twjit_node, &cfg_no_start_max_delta_cmd);
+}