[PATCH v2 net-next 01/12] 6lowpan: lowpan_is_iid_16_bit_compressable() does not detect compressible address correctly
From: Tony Cheneau <hidden>
Date: 2013-03-26 03:59:21
Subsystem:
ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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: Tony Cheneau <redacted> --- net/ieee802154/6lowpan.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/net/ieee802154/6lowpan.h b/net/ieee802154/6lowpan.h
index bba5f83..4b8f917 100644
--- a/net/ieee802154/6lowpan.h
+++ b/net/ieee802154/6lowpan.h@@ -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)
--
1.7.12.4
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