net/ieee802154/6lowpan/6lowpan_i.h

   1 #ifndef __IEEE802154_6LOWPAN_I_H__
   2 #define __IEEE802154_6LOWPAN_I_H__
   3
   4 #include <linux/list.h>
   5
   6 #include <net/ieee802154_netdev.h>
   7 #include <net/inet_frag.h>
   8
   9 struct lowpan_create_arg {
  10         u16 tag;
  11         u16 d_size;
  12         const struct ieee802154_addr *src;
  13         const struct ieee802154_addr *dst;
  14 };
  15
  16 /* Equivalent of ipv4 struct ip
  17  */
  18 struct lowpan_frag_queue {
  19         struct inet_frag_queue  q;
  20
  21         u16                     tag;
  22         u16                     d_size;
  23         struct ieee802154_addr  saddr;
  24         struct ieee802154_addr  daddr;
  25 };
  26
  27 static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
  28 {
  29         switch (a->mode) {
  30         case IEEE802154_ADDR_LONG:
  31                 return (((__force u64)a->extended_addr) >> 32) ^
  32                         (((__force u64)a->extended_addr) & 0xffffffff);
  33         case IEEE802154_ADDR_SHORT:
  34                 return (__force u32)(a->short_addr);
  35         default:
  36                 return 0;
  37         }
  38 }
  39
  40 struct lowpan_dev_record {
  41         struct net_device *ldev;
  42         struct list_head list;
  43 };
  44
  45 /* private device info */
  46 struct lowpan_dev_info {
  47         struct net_device       *real_dev; /* real WPAN device ptr */
  48         struct mutex            dev_list_mtx; /* mutex for list ops */
  49         u16                     fragment_tag;
  50 };
  51
  52 static inline struct
  53 lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
  54 {
  55         return netdev_priv(dev);
  56 }
  57
  58 extern struct list_head lowpan_devices;
  59
  60 int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
  61 void lowpan_net_frag_exit(void);
  62 int lowpan_net_frag_init(void);
  63
  64 void lowpan_rx_init(void);
  65 void lowpan_rx_exit(void);
  66
  67 int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
  68                          unsigned short type, const void *_daddr,
  69                          const void *_saddr, unsigned int len);
  70 netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev);
  71
  72 #endif /* __IEEE802154_6LOWPAN_I_H__ */