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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>
This commit is contained in:
Alexander Aring 2015-08-15 11:00:33 +02:00 committed by Marcel Holtmann
parent 0751272880
commit c0015bf3a3
1 changed files with 4 additions and 3 deletions
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7
net/ieee802154/6lowpan/rx.c
View File

@ -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;