include/net/netfilter/nfnetlink_queue.h

   1 #ifndef _NET_NFNL_QUEUE_H_
   2 #define _NET_NFNL_QUEUE_H_
   3
   4 #include <linux/netfilter/nf_conntrack_common.h>
   5
   6 struct nf_conn;
   7
   8 #ifdef CONFIG_NETFILTER_NETLINK_QUEUE_CT
   9 struct nf_conn *nfqnl_ct_get(struct sk_buff *entskb, size_t *size,
  10                              enum ip_conntrack_info *ctinfo);
  11 struct nf_conn *nfqnl_ct_parse(const struct sk_buff *skb,
  12                                const struct nlattr *attr,
  13                                enum ip_conntrack_info *ctinfo);
  14 int nfqnl_ct_put(struct sk_buff *skb, struct nf_conn *ct,
  15                  enum ip_conntrack_info ctinfo);
  16 void nfqnl_ct_seq_adjust(struct sk_buff *skb, struct nf_conn *ct,
  17                          enum ip_conntrack_info ctinfo, int diff);
  18 #else
  19 inline struct nf_conn *
  20 nfqnl_ct_get(struct sk_buff *entskb, size_t *size, enum ip_conntrack_info *ctinfo)
  21 {
  22         return NULL;
  23 }
  24
  25 inline struct nf_conn *nfqnl_ct_parse(const struct sk_buff *skb,
  26                                       const struct nlattr *attr,
  27                                       enum ip_conntrack_info *ctinfo)
  28 {
  29         return NULL;
  30 }
  31
  32 inline int
  33 nfqnl_ct_put(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo)
  34 {
  35         return 0;
  36 }
  37
  38 inline void nfqnl_ct_seq_adjust(struct sk_buff *skb, struct nf_conn *ct,
  39                                 enum ip_conntrack_info ctinfo, int diff)
  40 {
  41 }
  42 #endif /* NF_CONNTRACK */
  43 #endif