forked from Minki/linux
376b7bd355
The struct as currently defined uses host byte order for some fields, and most big endian/EUI display byte order for other fields. Inside the stack, endianness should ideally match network byte order where possible to minimize the number of byteswaps done in critical paths, but this patch does not address this; it is only preparatory. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
#ifndef __IEEE802154_6LOWPAN_REASSEMBLY_H__
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#define __IEEE802154_6LOWPAN_REASSEMBLY_H__
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#include <net/inet_frag.h>
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struct lowpan_create_arg {
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__be16 tag;
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u16 d_size;
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const struct ieee802154_addr_sa *src;
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const struct ieee802154_addr_sa *dst;
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};
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/* Equivalent of ipv4 struct ip
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*/
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struct lowpan_frag_queue {
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struct inet_frag_queue q;
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__be16 tag;
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u16 d_size;
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struct ieee802154_addr_sa saddr;
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struct ieee802154_addr_sa daddr;
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};
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static inline u32 ieee802154_addr_hash(const struct ieee802154_addr_sa *a)
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{
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switch (a->addr_type) {
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case IEEE802154_ADDR_LONG:
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return (__force u32)((((u32 *)a->hwaddr))[0] ^
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((u32 *)(a->hwaddr))[1]);
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case IEEE802154_ADDR_SHORT:
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return (__force u32)(a->short_addr);
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default:
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return 0;
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}
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}
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static inline bool
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ieee802154_addr_addr_equal(const struct ieee802154_addr_sa *a1,
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const struct ieee802154_addr_sa *a2)
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{
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if (a1->pan_id != a2->pan_id)
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return false;
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if (a1->addr_type != a2->addr_type)
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return false;
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switch (a1->addr_type) {
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case IEEE802154_ADDR_LONG:
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if (memcmp(a1->hwaddr, a2->hwaddr, IEEE802154_ADDR_LEN))
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return false;
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break;
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case IEEE802154_ADDR_SHORT:
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if (a1->short_addr != a2->short_addr)
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return false;
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break;
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default:
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return false;
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}
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return true;
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}
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int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
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void lowpan_net_frag_exit(void);
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int lowpan_net_frag_init(void);
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#endif /* __IEEE802154_6LOWPAN_REASSEMBLY_H__ */
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