[deliverable/linux.git] / net / ieee802154 / reassembly.h

#ifndef __IEEE802154_6LOWPAN_REASSEMBLY_H__
#define __IEEE802154_6LOWPAN_REASSEMBLY_H__

#include <net/inet_frag.h>

struct lowpan_create_arg {
	__be16 tag;
	u16 d_size;
	const struct ieee802154_addr *src;
	const struct ieee802154_addr *dst;
};

/* Equivalent of ipv4 struct ip
 */
struct lowpan_frag_queue {
	struct inet_frag_queue	q;

	__be16			tag;
	u16			d_size;
	struct ieee802154_addr	saddr;
	struct ieee802154_addr	daddr;
};

static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
{
	switch (a->mode) {
	case IEEE802154_ADDR_LONG:
		return (((__force u64)a->extended_addr) >> 32) ^
			(((__force u64)a->extended_addr) & 0xffffffff);
	case IEEE802154_ADDR_SHORT:
		return (__force u32)(a->short_addr);
	default:
		return 0;
	}
}

int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
void lowpan_net_frag_exit(void);
int lowpan_net_frag_init(void);

#endif /* __IEEE802154_6LOWPAN_REASSEMBLY_H__ */
Commit	Line	Data
7240cdec AA	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;
ae531b94 PB	9	const struct ieee802154_addr *src;
ae531b94 PB	10	const struct ieee802154_addr *dst;
7240cdec AA	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;
ae531b94 PB	20	struct ieee802154_addr saddr;
ae531b94 PB	21	struct ieee802154_addr daddr;
7240cdec AA	22	};
7240cdec AA	23
ae531b94	24	static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
7240cdec	25	{
ae531b94	26	switch (a->mode) {
7240cdec	27	case IEEE802154_ADDR_LONG:
ae531b94 PB	28	return (((__force u64)a->extended_addr) >> 32) ^
ae531b94 PB	29	(((__force u64)a->extended_addr) & 0xffffffff);
7240cdec AA	30	case IEEE802154_ADDR_SHORT:
	31	return (__force u32)(a->short_addr);
	32	default:
	33	return 0;
	34	}
	35	}
	36
7240cdec AA	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__ */