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| author | Alexander Aring <alex.aring@gmail.com> | 2015-08-15 11:00:33 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-08-15 23:28:09 +0200 |
| commit | c0015bf3a34961342a27b021672049e535ab36a1 (patch) | |
| tree | af1084cdfcdd4eb5d417ba46f73088c87069050e | |
| parent | 0751272880f3a0c74c786ecfaba2b3d98748482f (diff) | |
| download | linux-c0015bf3a34961342a27b021672049e535ab36a1.tar.gz linux-c0015bf3a34961342a27b021672049e535ab36a1.tar.bz2 linux-c0015bf3a34961342a27b021672049e535ab36a1.zip | |
ieee802154: 6lowpan: fix non-lowpan wpan interfaces
We receive all 802.15.4 frames on the packet handler "lowpan_rcv" this
patch checks if the wpan device belongs to a lowpan interface.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | net/ieee802154/6lowpan/rx.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c index d6f5e8ee6fda..12e10201d263 100644 --- a/net/ieee802154/6lowpan/rx.c +++ b/net/ieee802154/6lowpan/rx.c @@ -67,6 +67,10 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev, struct ieee802154_hdr hdr; int ret; + if (dev->type != ARPHRD_IEEE802154 || + !dev->ieee802154_ptr->lowpan_dev) + goto drop; + skb = skb_share_check(skb, GFP_ATOMIC); if (!skb) goto drop; @@ -77,9 +81,6 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev, if (skb->pkt_type == PACKET_OTHERHOST) goto drop_skb; - if (dev->type != ARPHRD_IEEE802154) - goto drop_skb; - if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0) goto drop_skb; |