From d1d7358e9f032a43bd48d56a623943b7bee7dce0 Mon Sep 17 00:00:00 2001 From: Phoebe Buckheister Date: Fri, 14 Mar 2014 21:24:04 +0100 Subject: ieee802154: add proper length checks to header creations Have mac802154 header_ops.create fail with -EMSGSIZE if the length passed will be too large to fit a frame. Since 6lowpan will ensure that no packet payload will be too large, pass a length of 0 there. 802.15.4 dgram sockets will also return -EMSGSIZE on payloads larger than the device MTU instead of -EINVAL. Signed-off-by: Phoebe Buckheister Signed-off-by: David S. Miller --- net/ieee802154/6lowpan_rtnl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ieee802154/6lowpan_rtnl.c') diff --git a/net/ieee802154/6lowpan_rtnl.c b/net/ieee802154/6lowpan_rtnl.c index d4edd20dab5f..606039442a59 100644 --- a/net/ieee802154/6lowpan_rtnl.c +++ b/net/ieee802154/6lowpan_rtnl.c @@ -141,7 +141,7 @@ static int lowpan_header_create(struct sk_buff *skb, } return dev_hard_header(skb, lowpan_dev_info(dev)->real_dev, - type, (void *)&da, (void *)&sa, skb->len); + type, (void *)&da, (void *)&sa, 0); } static int lowpan_give_skb_to_devices(struct sk_buff *skb, -- cgit v1.2.3