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6lowpan: Use netdev addr_len to determine lladdr len

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This allow technologies such as Bluetooth to use its native lladdr which
is eui48 instead of eui64 which was expected by functions like
lowpan_header_decompress and lowpan_header_compress.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Luiz Augusto von Dentz
2017-03-12 10:19:37 +02:00
committed by Marcel Holtmann
parent 8a7a4b4767
commit fa09ae661f
3 changed files with 63 additions and 47 deletions
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19
include/net/6lowpan.h
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@@ -198,6 +198,25 @@ static inline void lowpan_iphc_uncompress_eui64_lladdr(struct in6_addr *ipaddr,
ipaddr->s6_addr[8] ^= 0x02;
}
static inline void lowpan_iphc_uncompress_eui48_lladdr(struct in6_addr *ipaddr,
const void *lladdr)
{
/* fe:80::XXXX:XXff:feXX:XXXX
* \_________________/
* hwaddr
*/
ipaddr->s6_addr[0] = 0xFE;
ipaddr->s6_addr[1] = 0x80;
memcpy(&ipaddr->s6_addr[8], lladdr, 3);
ipaddr->s6_addr[11] = 0xFF;
ipaddr->s6_addr[12] = 0xFE;
memcpy(&ipaddr->s6_addr[13], lladdr + 3, 3);
/* second bit-flip (Universe/Local)
* is done according RFC2464
*/
ipaddr->s6_addr[8] ^= 0x02;
}
#ifdef DEBUG
/* print data in line */
static inline void raw_dump_inline(const char *caller, char *msg,