From 7adac1ec8198e9f5c802918e58a967b92db4a66f Mon Sep 17 00:00:00 2001 From: Alan Ott Date: Sat, 5 Oct 2013 23:15:18 -0400 Subject: 6lowpan: Only make 6lowpan links to IEEE802154 devices Refuse to create 6lowpan links if the actual hardware interface is of any type other than ARPHRD_IEEE802154. Signed-off-by: Alan Ott Suggested-by: Alexander Aring Signed-off-by: David S. Miller --- net/ieee802154/6lowpan.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net') diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index c85e71e0c7f..8f56b2b63bf 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -1372,6 +1372,8 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev, real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); if (!real_dev) return -ENODEV; + if (real_dev->type != ARPHRD_IEEE802154) + return -EINVAL; lowpan_dev_info(dev)->real_dev = real_dev; lowpan_dev_info(dev)->fragment_tag = 0; -- cgit v1.2.3