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Commit 8d879a3f authored by Tony Cheneau's avatar Tony Cheneau Committed by David S. Miller
Browse files

6lowpan: lowpan_is_iid_16_bit_compressable() does not detect compressible address correctly 



The current test is not RFC6282 compliant. The same issue has been found
and fixed in Contiki. This patch is basically a port of their fix.

Signed-off-by: default avatarTony Cheneau <tony.cheneau@amnesiak.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent de179c8c

net/ieee802154/6lowpan.h

+4 −3
Original line number Diff line number Diff line
@@ -92,9 +92,10 @@ 
 */

#define lowpan_is_iid_16_bit_compressable(a)	\

	((((a)->s6_addr16[4]) == 0) &&		\

	 (((a)->s6_addr16[5]) == 0) &&		\

	 (((a)->s6_addr16[6]) == 0) &&		\

	 ((((a)->s6_addr[14]) & 0x80) == 0))

	 (((a)->s6_addr[10]) == 0) &&		\

	 (((a)->s6_addr[11]) == 0xff) &&	\

	 (((a)->s6_addr[12]) == 0xfe) &&	\

	 (((a)->s6_addr[13]) == 0))



/* multicast address */

#define is_addr_mcast(a) (((a)->s6_addr[0]) == 0xFF)