1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <net/act_api.h>
6 #include <uapi/linux/tc_act/tc_ct.h>
8 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
9 #include <net/netfilter/nf_nat.h>
10 #include <net/netfilter/nf_conntrack_labels.h>
12 struct tcf_ct_params {
13 struct nf_conntrack_helper *helper;
20 u32 labels[NF_CT_LABELS_MAX_SIZE / sizeof(u32)];
21 u32 labels_mask[NF_CT_LABELS_MAX_SIZE / sizeof(u32)];
23 struct nf_nat_range2 range;
31 struct tcf_ct_flow_table *ct_ft;
32 struct nf_flowtable *nf_ft;
36 struct tc_action common;
37 struct tcf_ct_params __rcu *params;
40 #define to_ct(a) ((struct tcf_ct *)a)
41 #define to_ct_params(a) \
42 ((struct tcf_ct_params *) \
43 rcu_dereference_protected(to_ct(a)->params, \
44 lockdep_is_held(&a->tcfa_lock)))
46 static inline uint16_t tcf_ct_zone(const struct tc_action *a)
48 return to_ct_params(a)->zone;
51 static inline int tcf_ct_action(const struct tc_action *a)
53 return to_ct_params(a)->ct_action;
56 static inline struct nf_flowtable *tcf_ct_ft(const struct tc_action *a)
58 return to_ct_params(a)->nf_ft;
61 static inline struct nf_conntrack_helper *tcf_ct_helper(const struct tc_action *a)
63 return to_ct_params(a)->helper;
67 static inline uint16_t tcf_ct_zone(const struct tc_action *a) { return 0; }
68 static inline int tcf_ct_action(const struct tc_action *a) { return 0; }
69 static inline struct nf_flowtable *tcf_ct_ft(const struct tc_action *a)
73 static inline struct nf_conntrack_helper *tcf_ct_helper(const struct tc_action *a)
77 #endif /* CONFIG_NF_CONNTRACK */
79 #if IS_ENABLED(CONFIG_NET_ACT_CT)
81 tcf_ct_flow_table_restore_skb(struct sk_buff *skb, unsigned long cookie)
83 enum ip_conntrack_info ctinfo = cookie & NFCT_INFOMASK;
86 ct = (struct nf_conn *)(cookie & NFCT_PTRMASK);
87 nf_conntrack_get(&ct->ct_general);
88 nf_ct_set(skb, ct, ctinfo);
92 tcf_ct_flow_table_restore_skb(struct sk_buff *skb, unsigned long cookie) { }
95 static inline bool is_tcf_ct(const struct tc_action *a)
97 #if defined(CONFIG_NET_CLS_ACT) && IS_ENABLED(CONFIG_NF_CONNTRACK)
98 if (a->ops && a->ops->id == TCA_ID_CT)
104 #endif /* __NET_TC_CT_H */