Commit 9e262f50 authored Jul 06, 2016 by Alexander Aring Committed by Marcel Holtmann Jul 08, 2016

6lowpan: ndisc: set invalid unicast short addr to unspec



When receiving neighbour information with short address option field we
should check the complete range of invalid short addresses and set it to
one invalid address setting which is the unspecified address. This
address is also used when by creating at first a new neighbour entry to
indicate no short address is set.

Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

parent aaa7088e

net/6lowpan/ndisc.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -97,10 +97,13 @@ static void lowpan_ndisc_802154_update(struct neighbour *n, u32 flags,
		}

		write_lock_bh(&n->lock);
		if (lladdr_short)
		if (lladdr_short) {
		ieee802154_be16_to_le16(&neigh->short_addr, lladdr_short);
		else
		if (!lowpan_802154_is_valid_src_short_addr(neigh->short_addr))
		neigh->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC);
		} else {
		neigh->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC);
		}
		write_unlock_bh(&n->lock);
		}