include/net/tc_act/tc_ct.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NET_TC_CT_H
   3 #define __NET_TC_CT_H
   4
   5 #include <net/act_api.h>
   6 #include <uapi/linux/tc_act/tc_ct.h>
   7
   8 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
   9 #include <net/netfilter/nf_nat.h>
  10 #include <net/netfilter/nf_conntrack_labels.h>
  11
  12 struct tcf_ct_params {
  13         struct nf_conn *tmpl;
  14         u16 zone;
  15
  16         u32 mark;
  17         u32 mark_mask;
  18
  19         u32 labels[NF_CT_LABELS_MAX_SIZE / sizeof(u32)];
  20         u32 labels_mask[NF_CT_LABELS_MAX_SIZE / sizeof(u32)];
  21
  22         struct nf_nat_range2 range;
  23         bool ipv4_range;
  24
  25         u16 ct_action;
  26
  27         struct rcu_head rcu;
  28 };
  29
  30 struct tcf_ct {
  31         struct tc_action common;
  32         struct tcf_ct_params __rcu *params;
  33 };
  34
  35 #define to_ct(a) ((struct tcf_ct *)a)
  36 #define to_ct_params(a) ((struct tcf_ct_params *) \
  37                          rtnl_dereference((to_ct(a)->params)))
  38
  39 static inline uint16_t tcf_ct_zone(const struct tc_action *a)
  40 {
  41         return to_ct_params(a)->zone;
  42 }
  43
  44 static inline int tcf_ct_action(const struct tc_action *a)
  45 {
  46         return to_ct_params(a)->ct_action;
  47 }
  48
  49 #else
  50 static inline uint16_t tcf_ct_zone(const struct tc_action *a) { return 0; }
  51 static inline int tcf_ct_action(const struct tc_action *a) { return 0; }
  52 #endif /* CONFIG_NF_CONNTRACK */
  53
  54 static inline bool is_tcf_ct(const struct tc_action *a)
  55 {
  56 #if defined(CONFIG_NET_CLS_ACT) && IS_ENABLED(CONFIG_NF_CONNTRACK)
  57         if (a->ops && a->ops->id == TCA_ID_CT)
  58                 return true;
  59 #endif
  60         return false;
  61 }
  62
  63 #endif /* __NET_TC_CT_H */