6lowpan_i.h 1.4 KB
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#ifndef __IEEE802154_6LOWPAN_I_H__
#define __IEEE802154_6LOWPAN_I_H__
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#include <linux/list.h>

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#include <net/inet_frag.h>

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

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

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

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

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struct lowpan_dev_record {
	struct net_device *ldev;
	struct list_head list;
};

/* private device info */
struct lowpan_dev_info {
	struct net_device	*real_dev; /* real WPAN device ptr */
	struct mutex		dev_list_mtx; /* mutex for list ops */
	u16			fragment_tag;
};

static inline struct
lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
{
	return netdev_priv(dev);
}

extern struct list_head lowpan_devices;

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

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

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#endif /* __IEEE802154_6LOWPAN_I_H__ */