1 files changed, 37 insertions, 0 deletions
diff --git a/include/rt.h b/include/rt.h
new file mode 100644
index 0000000..195af94
--- /dev/null
+++ b/include/rt.h
@@ -0,0 +1,37 @@
+#ifndef NFTABLES_RT_H
+#define NFTABLES_RT_H
+
+/**
+ * struct rt_template - template for routing expressions
+ *
+ * @token:	parser token for the expression
+ * @dtype:	data type of the expression
+ * @len:	length of the expression
+ * @byteorder:	byteorder
+ * @invalid:	invalidate datatype on allocation from parser
+ */
+struct rt_template {
+	const char		*token;
+	const struct datatype	*dtype;
+	unsigned int		len;
+	enum byteorder		byteorder;
+	bool			invalid;
+};
+
+extern const struct rt_template rt_templates[];
+
+#define RT_TEMPLATE(__token, __dtype, __len, __byteorder, __invalid) {	\
+	.token		= (__token),					\
+	.dtype		= (__dtype),					\
+	.len		= (__len),					\
+	.byteorder	= (__byteorder),				\
+	.invalid	= (__invalid),					\
+}
+
+extern struct expr *rt_expr_alloc(const struct location *loc,
+				  enum nft_rt_keys key, bool invalid);
+extern void rt_expr_update_type(struct proto_ctx *ctx, struct expr *expr);
+
+extern const struct datatype realm_type;
+
+#endif /* NFTABLES_RT_H */