--- /dev/null
+/*
+ * Copyright (C) 2022 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef RELAYD_CMD_2_15_H
+#define RELAYD_CMD_2_15_H
+
+#include "lttng-relayd.hpp"
+#include <common/buffer-view.hpp>
+#include <common/uuid.hpp>
+#include <lttng/trace-format-descriptor-internal.hpp>
+
+int cmd_create_session_2_15(const struct lttng_buffer_view *payload,
+ char *session_name,
+ char *hostname,
+ char *base_path,
+ uint32_t *live_timer,
+ bool *snapshot,
+ uint64_t *id_sessiond,
+ lttng_uuid& sessiond_uuid,
+ bool *has_current_chunk,
+ uint64_t *current_chunk_id,
+ time_t *creation_time,
+ bool *session_name_contains_creation_time,
+ relayd_trace_format& trace_format);
+
+#endif /* RELAYD_CMD_2_15_H */