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