Commit 9e262f50 authored by Alexander Aring's avatar Alexander Aring Committed by Marcel Holtmann

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: default avatarAlexander Aring <aar@pengutronix.de>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent aaa7088e
...@@ -97,10 +97,13 @@ static void lowpan_ndisc_802154_update(struct neighbour *n, u32 flags, ...@@ -97,10 +97,13 @@ static void lowpan_ndisc_802154_update(struct neighbour *n, u32 flags,
} }
write_lock_bh(&n->lock); write_lock_bh(&n->lock);
if (lladdr_short) if (lladdr_short) {
ieee802154_be16_to_le16(&neigh->short_addr, 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); neigh->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC);
}
write_unlock_bh(&n->lock); write_unlock_bh(&n->lock);
} }
......
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