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 int nfqnl_attach_expect(struct nf_conn *ct, const struct nlattr *attr,
  19                         u32 portid, u32 report);
  20 #else
  21 inline struct nf_conn *
  22 nfqnl_ct_get(struct sk_buff *entskb, size_t *size, enum ip_conntrack_info *ctinfo)
  23 {
  24         return NULL;
  25 }
  26
  27 inline struct nf_conn *nfqnl_ct_parse(const struct sk_buff *skb,
  28                                       const struct nlattr *attr,
  29                                       enum ip_conntrack_info *ctinfo)
  30 {
  31         return NULL;
  32 }
  33
  34 inline int
  35 nfqnl_ct_put(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo)
  36 {
  37         return 0;
  38 }
  39
  40 inline void nfqnl_ct_seq_adjust(struct sk_buff *skb, struct nf_conn *ct,
  41                                 enum ip_conntrack_info ctinfo, int diff)
  42 {
  43 }
  44
  45 inline int nfqnl_attach_expect(struct nf_conn *ct, const struct nlattr *attr,
  46                                u32 portid, u32 report)
  47 {
  48         return 0;
  49 }
  50 #endif /* NF_CONNTRACK */
  51 #endif