diff options
| author | Alexander Aring <aar@pengutronix.de> | 2016-06-15 21:20:16 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-15 20:41:22 -0700 |
| commit | 8626a0c83b0d471d859bcd908d016874df951fc3 (patch) | |
| tree | 236430b84a735662cb096da1ef1536c2dc58f614 /net/ieee802154 | |
| parent | 6010097806350efe3998f438959627ccf1047186 (diff) | |
| download | lwn-8626a0c83b0d471d859bcd908d016874df951fc3.tar.gz lwn-8626a0c83b0d471d859bcd908d016874df951fc3.zip | |
6lowpan: add private neighbour data
This patch will introduce a 6lowpan neighbour private data. Like the
interface private data we handle private data for generic 6lowpan and
for link-layer specific 6lowpan.
The current first use case if to save the short address for a 802.15.4
6lowpan neighbour.
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/6lowpan/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c index 4e2b30894224..8c004a0c8d64 100644 --- a/net/ieee802154/6lowpan/core.c +++ b/net/ieee802154/6lowpan/core.c @@ -81,11 +81,21 @@ static int lowpan_stop(struct net_device *dev) return 0; } +static int lowpan_neigh_construct(struct neighbour *n) +{ + struct lowpan_802154_neigh *neigh = lowpan_802154_neigh(neighbour_priv(n)); + + /* default no short_addr is available for a neighbour */ + neigh->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC); + return 0; +} + static const struct net_device_ops lowpan_netdev_ops = { .ndo_init = lowpan_dev_init, .ndo_start_xmit = lowpan_xmit, .ndo_open = lowpan_open, .ndo_stop = lowpan_stop, + .ndo_neigh_construct = lowpan_neigh_construct, }; static void lowpan_setup(struct net_device *ldev) @@ -150,6 +160,8 @@ static int lowpan_newlink(struct net *src_net, struct net_device *ldev, wdev->needed_headroom; ldev->needed_tailroom = wdev->needed_tailroom; + ldev->neigh_priv_len = sizeof(struct lowpan_802154_neigh); + ret = lowpan_register_netdevice(ldev, LOWPAN_LLTYPE_IEEE802154); if (ret < 0) { dev_put(wdev); |