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#ifndef _EXPR_OPS_H_
#define _EXPR_OPS_H_
#include <stdint.h>
#include "internal.h"
struct nlattr;
struct nlmsghdr;
struct nftnl_expr;
struct attr_policy {
uint32_t maxlen;
};
struct expr_ops {
const char *name;
uint32_t alloc_len;
int nftnl_max_attr;
struct attr_policy *attr_policy;
void (*init)(const struct nftnl_expr *e);
void (*free)(const struct nftnl_expr *e);
int (*set)(struct nftnl_expr *e, uint16_t type, const void *data, uint32_t data_len);
const void *(*get)(const struct nftnl_expr *e, uint16_t type, uint32_t *data_len);
int (*parse)(struct nftnl_expr *e, struct nlattr *attr);
void (*build)(struct nlmsghdr *nlh, const struct nftnl_expr *e);
int (*output)(char *buf, size_t len, uint32_t flags, const struct nftnl_expr *e);
};
struct expr_ops *nftnl_expr_ops_lookup(const char *name);
#define nftnl_expr_data(ops) (void *)ops->data
#endif
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