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
9struct 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 */
18struct 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
27static 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
40struct lowpan_dev_record {
41	struct net_device *ldev;
42	struct list_head list;
43};
44
45/* private device info */
46struct 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
52static inline struct
53lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
54{
55	return netdev_priv(dev);
56}
57
58extern struct list_head lowpan_devices;
59
60int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
61void lowpan_net_frag_exit(void);
62int lowpan_net_frag_init(void);
63
64void lowpan_rx_init(void);
65void lowpan_rx_exit(void);
66
67int 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);
70netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev);
71
72#endif /* __IEEE802154_6LOWPAN_I_H__ */
73