net/ieee802154/reassembly.h

   1 #ifndef __IEEE802154_6LOWPAN_REASSEMBLY_H__
   2 #define __IEEE802154_6LOWPAN_REASSEMBLY_H__
   3
   4 #include <net/inet_frag.h>
   5
   6 struct lowpan_create_arg {
   7         __be16 tag;
   8         u16 d_size;
   9         const struct ieee802154_addr *src;
  10         const struct ieee802154_addr *dst;
  11 };
  12
  13 /* Equivalent of ipv4 struct ip
  14  */
  15 struct lowpan_frag_queue {
  16         struct inet_frag_queue  q;
  17
  18         __be16                  tag;
  19         u16                     d_size;
  20         struct ieee802154_addr  saddr;
  21         struct ieee802154_addr  daddr;
  22 };
  23
  24 static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
  25 {
  26         switch (a->mode) {
  27         case IEEE802154_ADDR_LONG:
  28                 return (((__force u64)a->extended_addr) >> 32) ^
  29                         (((__force u64)a->extended_addr) & 0xffffffff);
  30         case IEEE802154_ADDR_SHORT:
  31                 return (__force u32)(a->short_addr);
  32         default:
  33                 return 0;
  34         }
  35 }
  36
  37 int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
  38 void lowpan_net_frag_exit(void);
  39 int lowpan_net_frag_init(void);
  40
  41 #endif /* __IEEE802154_6LOWPAN_REASSEMBLY_H__ */