1 files changed, 32 insertions, 0 deletions
diff --git a/src/network/tc/tc.h b/src/network/tc/tc.h
new file mode 100644
index 0000000..7fbd744
--- /dev/null
+++ b/src/network/tc/tc.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "networkd-link.h"
+
+typedef enum TrafficControlKind {
+        TC_KIND_QDISC,
+        TC_KIND_TCLASS,
+        TC_KIND_FILTER,
+        _TC_KIND_MAX,
+        _TC_KIND_INVALID = -1,
+} TrafficControlKind;
+
+typedef struct TrafficControl {
+        TrafficControlKind kind;
+} TrafficControl;
+
+/* For casting a tc into the various tc kinds */
+#define DEFINE_TC_CAST(UPPERCASE, MixedCase)                           \
+        static inline MixedCase* TC_TO_##UPPERCASE(TrafficControl *tc) {                    \
+                if (_unlikely_(!tc || tc->kind != TC_KIND_##UPPERCASE))  \
+                        return NULL;                                      \
+                                                                          \
+                return (MixedCase*) tc;                                    \
+        }
+
+/* For casting the various tc kinds into a tc */
+#define TC(tc) (&(tc)->meta)
+
+void traffic_control_free(TrafficControl *tc);
+int link_configure_traffic_control(Link *link);
+void network_drop_invalid_traffic_control(Network *network);