err.no Git - linux-2.6/blob - include/net/netfilter/nf_queue.h

   1 #ifndef _NF_QUEUE_H
   2 #define _NF_QUEUE_H
   3
   4 /* Each queued (to userspace) skbuff has one of these. */
   5 struct nf_info {
   6         struct nf_hook_ops      *elem;
   7         int                     pf;
   8         unsigned int            hook;
   9         struct net_device       *indev;
  10         struct net_device       *outdev;
  11         int                     (*okfn)(struct sk_buff *);
  12 };
  13
  14 #define nf_info_reroute(x) ((void *)x + sizeof(struct nf_info))
  15
  16 /* Packet queuing */
  17 struct nf_queue_handler {
  18         int                     (*outfn)(struct sk_buff *skb,
  19                                          struct nf_info *info,
  20                                          unsigned int queuenum);
  21         char                    *name;
  22 };
  23
  24 extern int nf_register_queue_handler(int pf,
  25                                      const struct nf_queue_handler *qh);
  26 extern int nf_unregister_queue_handler(int pf,
  27                                        const struct nf_queue_handler *qh);
  28 extern void nf_unregister_queue_handlers(const struct nf_queue_handler *qh);
  29 extern void nf_reinject(struct sk_buff *skb, struct nf_info *info,
  30                         unsigned int verdict);
  31
  32 #endif /* _NF_QUEUE_H */