/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NF_CONNTRACK_COMMON_H
#define _NF_CONNTRACK_COMMON_H

#include <linux/refcount.h>
#include <uapi/linux/netfilter/nf_conntrack_common.h>

struct ip_conntrack_stat {
        unsigned int found;
        unsigned int invalid;
        unsigned int insert;
        unsigned int insert_failed;
        unsigned int clash_resolve;
        unsigned int drop;
        unsigned int early_drop;
        unsigned int error;
        unsigned int expect_new;
        unsigned int expect_create;
        unsigned int expect_delete;
        unsigned int search_restart;
        unsigned int chaintoolong;
};

#define NFCT_INFOMASK   7UL
#define NFCT_PTRMASK    ~(NFCT_INFOMASK)

struct nf_conntrack {
        refcount_t use;
};

void nf_conntrack_destroy(struct nf_conntrack *nfct);

/* like nf_ct_put, but without module dependency on nf_conntrack */
static inline void nf_conntrack_put(struct nf_conntrack *nfct)
{
        if (nfct && refcount_dec_and_test(&nfct->use))
                nf_conntrack_destroy(nfct);
}
static inline void nf_conntrack_get(struct nf_conntrack *nfct)
{
        if (nfct)
                refcount_inc(&nfct->use);
}

#endif /* _NF_CONNTRACK_COMMON_H */