[linux-2.6-block.git] / net / ieee802154 / 6lowpan / 6lowpan_i.h

#ifndef __IEEE802154_6LOWPAN_I_H__
#define __IEEE802154_6LOWPAN_I_H__

#include <linux/list.h>

#include <net/ieee802154_netdev.h>
#include <net/inet_frag.h>
#include <net/6lowpan.h>

typedef unsigned __bitwise__ lowpan_rx_result;
#define RX_CONTINUE		((__force lowpan_rx_result) 0u)
#define RX_DROP_UNUSABLE	((__force lowpan_rx_result) 1u)
#define RX_DROP			((__force lowpan_rx_result) 2u)
#define RX_QUEUED		((__force lowpan_rx_result) 3u)

#define LOWPAN_DISPATCH_FRAG1           0xc0
#define LOWPAN_DISPATCH_FRAGN           0xe0

struct lowpan_create_arg {
	u16 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;

	u16			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;
	}
}

/* private device info */
struct lowpan_dev_info {
	struct net_device	*wdev; /* wpan device ptr */
	u16			fragment_tag;
};

static inline struct
lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
{
	return (struct lowpan_dev_info *)lowpan_priv(dev)->priv;
}

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

void lowpan_rx_init(void);
void lowpan_rx_exit(void);

int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
			 unsigned short type, const void *_daddr,
			 const void *_saddr, unsigned int len);
netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev);

int lowpan_iphc_decompress(struct sk_buff *skb);
lowpan_rx_result lowpan_rx_h_ipv6(struct sk_buff *skb);

#endif /* __IEEE802154_6LOWPAN_I_H__ */
Commit	Line	Data
8691ee59 AA	1	#ifndef __IEEE802154_6LOWPAN_I_H__
8691ee59 AA	2	#define __IEEE802154_6LOWPAN_I_H__
7240cdec	3
4662a0da AA	4	#include <linux/list.h>
4662a0da AA	5
4dc315e2	6	#include <net/ieee802154_netdev.h>
7240cdec	7	#include <net/inet_frag.h>
b72f6f51	8	#include <net/6lowpan.h>
7240cdec	9
72a5e6bb AA	10	typedef unsigned __bitwise__ lowpan_rx_result;
	11	#define RX_CONTINUE ((__force lowpan_rx_result) 0u)
	12	#define RX_DROP_UNUSABLE ((__force lowpan_rx_result) 1u)
	13	#define RX_DROP ((__force lowpan_rx_result) 2u)
	14	#define RX_QUEUED ((__force lowpan_rx_result) 3u)
	15
	16	#define LOWPAN_DISPATCH_FRAG1 0xc0
	17	#define LOWPAN_DISPATCH_FRAGN 0xe0
	18
7240cdec	19	struct lowpan_create_arg {
f870b8c6	20	u16 tag;
7240cdec	21	u16 d_size;
ae531b94 PB	22	const struct ieee802154_addr *src;
ae531b94 PB	23	const struct ieee802154_addr *dst;
7240cdec AA	24	};
	25
	26	/* Equivalent of ipv4 struct ip
	27	*/
	28	struct lowpan_frag_queue {
	29	struct inet_frag_queue q;
	30
f870b8c6	31	u16 tag;
7240cdec	32	u16 d_size;
ae531b94 PB	33	struct ieee802154_addr saddr;
ae531b94 PB	34	struct ieee802154_addr daddr;
7240cdec AA	35	};
7240cdec AA	36
ae531b94	37	static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
7240cdec	38	{
ae531b94	39	switch (a->mode) {
7240cdec	40	case IEEE802154_ADDR_LONG:
ae531b94 PB	41	return (((__force u64)a->extended_addr) >> 32) ^
ae531b94 PB	42	(((__force u64)a->extended_addr) & 0xffffffff);
7240cdec AA	43	case IEEE802154_ADDR_SHORT:
	44	return (__force u32)(a->short_addr);
	45	default:
	46	return 0;
	47	}
	48	}
	49
4662a0da AA	50	/* private device info */
4662a0da AA	51	struct lowpan_dev_info {
f4606583	52	struct net_device wdev; / wpan device ptr */
4662a0da AA	53	u16 fragment_tag;
	54	};
	55
	56	static inline struct
	57	lowpan_dev_info lowpan_dev_info(const struct net_device dev)
	58	{
b72f6f51	59	return (struct lowpan_dev_info *)lowpan_priv(dev)->priv;
4662a0da AA	60	}
4662a0da AA	61
7240cdec AA	62	int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
	63	void lowpan_net_frag_exit(void);
	64	int lowpan_net_frag_init(void);
	65
4662a0da AA	66	void lowpan_rx_init(void);
	67	void lowpan_rx_exit(void);
	68
4dc315e2 AA	69	int lowpan_header_create(struct sk_buff skb, struct net_device dev,
	70	unsigned short type, const void *_daddr,
	71	const void *_saddr, unsigned int len);
	72	netdev_tx_t lowpan_xmit(struct sk_buff skb, struct net_device dev);
	73
72a5e6bb AA	74	int lowpan_iphc_decompress(struct sk_buff *skb);
	75	lowpan_rx_result lowpan_rx_h_ipv6(struct sk_buff *skb);
	76
8691ee59	77	#endif /* __IEEE802154_6LOWPAN_I_H__ */