1 files changed, 24 insertions, 0 deletions
diff --git a/src/expr_ops.h b/src/expr_ops.h
new file mode 100644
index 0000000..2322958
--- /dev/null
+++ b/src/expr_ops.h
@@ -0,0 +1,24 @@
+#ifndef _EXPR_OPS_H_
+#define _EXPR_OPS_H_
+
+#include <stdlib.h>
+#include <stdint.h>
+
+struct nlattr;
+struct nlmsghdr;
+struct nft_rule_expr;
+
+struct expr_ops {
+	char	*name;
+	size_t	alloc_len;
+	int	max_attr;
+	int	(*set)(struct nft_rule_expr *e, uint16_t type, const void *data, size_t data_len);
+	const void *(*get)(struct nft_rule_expr *e, uint16_t type, size_t *data_len);
+	int 	(*parse)(struct nft_rule_expr *e, struct nlattr *attr);
+	void	(*build)(struct nlmsghdr *nlh, struct nft_rule_expr *e);
+	int	(*snprintf)(char *buf, size_t len, struct nft_rule_expr *e);
+};
+
+struct expr_ops *nft_expr_ops_lookup(const char *name);
+
+#endif