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93 lines
2.1 KiB
93 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __NET_TC_CT_H |
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#define __NET_TC_CT_H |
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#include <net/act_api.h> |
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#include <uapi/linux/tc_act/tc_ct.h> |
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#if IS_ENABLED(CONFIG_NF_CONNTRACK) |
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#include <net/netfilter/nf_nat.h> |
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#include <net/netfilter/nf_conntrack_labels.h> |
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struct tcf_ct_params { |
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struct nf_conn *tmpl; |
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u16 zone; |
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u32 mark; |
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u32 mark_mask; |
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u32 labels[NF_CT_LABELS_MAX_SIZE / sizeof(u32)]; |
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u32 labels_mask[NF_CT_LABELS_MAX_SIZE / sizeof(u32)]; |
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struct nf_nat_range2 range; |
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bool ipv4_range; |
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u16 ct_action; |
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struct rcu_head rcu; |
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struct tcf_ct_flow_table *ct_ft; |
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struct nf_flowtable *nf_ft; |
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}; |
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struct tcf_ct { |
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struct tc_action common; |
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struct tcf_ct_params __rcu *params; |
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}; |
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#define to_ct(a) ((struct tcf_ct *)a) |
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#define to_ct_params(a) \ |
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((struct tcf_ct_params *) \ |
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rcu_dereference_protected(to_ct(a)->params, \ |
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lockdep_is_held(&a->tcfa_lock))) |
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static inline uint16_t tcf_ct_zone(const struct tc_action *a) |
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{ |
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return to_ct_params(a)->zone; |
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} |
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static inline int tcf_ct_action(const struct tc_action *a) |
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{ |
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return to_ct_params(a)->ct_action; |
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} |
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static inline struct nf_flowtable *tcf_ct_ft(const struct tc_action *a) |
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{ |
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return to_ct_params(a)->nf_ft; |
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} |
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#else |
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static inline uint16_t tcf_ct_zone(const struct tc_action *a) { return 0; } |
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static inline int tcf_ct_action(const struct tc_action *a) { return 0; } |
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static inline struct nf_flowtable *tcf_ct_ft(const struct tc_action *a) |
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{ |
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return NULL; |
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} |
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#endif /* CONFIG_NF_CONNTRACK */ |
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#if IS_ENABLED(CONFIG_NET_ACT_CT) |
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static inline void |
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tcf_ct_flow_table_restore_skb(struct sk_buff *skb, unsigned long cookie) |
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{ |
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enum ip_conntrack_info ctinfo = cookie & NFCT_INFOMASK; |
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struct nf_conn *ct; |
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ct = (struct nf_conn *)(cookie & NFCT_PTRMASK); |
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nf_conntrack_get(&ct->ct_general); |
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nf_ct_set(skb, ct, ctinfo); |
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} |
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#else |
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static inline void |
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tcf_ct_flow_table_restore_skb(struct sk_buff *skb, unsigned long cookie) { } |
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#endif |
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static inline bool is_tcf_ct(const struct tc_action *a) |
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{ |
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#if defined(CONFIG_NET_CLS_ACT) && IS_ENABLED(CONFIG_NF_CONNTRACK) |
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if (a->ops && a->ops->id == TCA_ID_CT) |
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return true; |
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#endif |
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return false; |
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} |
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#endif /* __NET_TC_CT_H */
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