Commit 8c84296f authored May 14, 2014 by Phoebe Buckheister Committed by David S. Miller May 15, 2014

mac802154: account for all header parts during wpan header creationg



The current WPAN header creation code checks for EMSGSIZE conditions,
but does not account for the MIC field that link layer security may add
at the end of the frame. Now that we can accurately calculate the
maximum payload size of packets, use that to check for EMSGSIZE
conditions.

Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent c3a6114f

net/mac802154/wpan.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -231,7 +231,7 @@ static int mac802154_header_create(struct sk_buff *skb,
		skb_reset_mac_header(skb);
		skb->mac_len = hlen;

		if (hlen + len + 2 > dev->mtu)
		if (len > ieee802154_max_payload(&hdr))
		return -EMSGSIZE;

		return hlen;

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