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authorAlan Ott <alan@signal11.us>2013-10-05 23:15:18 -0400
committerDavid S. Miller <davem@davemloft.net>2013-10-08 15:28:37 -0400
commit7adac1ec8198e9f5c802918e58a967b92db4a66f (patch)
tree155a6bc0a7584062298606fd407028a8466492e9 /net
parent88ba09df236c618b5466d35a0165df0dc865eac5 (diff)
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 <alan@signal11.us> Suggested-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ieee802154/6lowpan.c2
1 files changed, 2 insertions, 0 deletions
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;