/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NF_CONNTRACK_ACT_CT_H
#define _NF_CONNTRACK_ACT_CT_H
#include <net/netfilter/nf_conntrack.h>
#include <linux/netfilter/nf_conntrack_common.h>
#include <net/netfilter/nf_conntrack_extend.h>
struct nf_conn_act_ct_ext {
int ifindex[IP_CT_DIR_MAX];
};
static inline struct nf_conn_act_ct_ext *nf_conn_act_ct_ext_find(const struct nf_conn *ct)
{
#if IS_ENABLED(CONFIG_NET_ACT_CT)
return nf_ct_ext_find(ct, NF_CT_EXT_ACT_CT);
#else
return NULL;
#endif
}
static inline void nf_conn_act_ct_ext_fill(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo)
{
#if IS_ENABLED(CONFIG_NET_ACT_CT)
struct nf_conn_act_ct_ext *act_ct_ext;
act_ct_ext = nf_conn_act_ct_ext_find(ct);
if (dev_net(skb->dev) == &init_net && act_ct_ext)
act_ct_ext->ifindex[CTINFO2DIR(ctinfo)] = skb->dev->ifindex;
#endif
}
static inline struct
nf_conn_act_ct_ext *nf_conn_act_ct_ext_add(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo)
{
#if IS_ENABLED(CONFIG_NET_ACT_CT)
struct nf_conn_act_ct_ext *act_ct = nf_ct_ext_find(ct, NF_CT_EXT_ACT_CT);
if (act_ct)
return act_ct;
act_ct = nf_ct_ext_add(ct, NF_CT_EXT_ACT_CT, GFP_ATOMIC);
nf_conn_act_ct_ext_fill(skb, ct, ctinfo);
return act_ct;
#else
return NULL;
#endif
}
#endif /* _NF_CONNTRACK_ACT_CT_H */