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mac802154: account for all header parts during wpan header creationg

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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>
This commit is contained in:
Phoebe Buckheister 2014-05-14 17:43:07 +02:00 committed by David S. Miller
parent c3a6114f31
commit 8c84296fd2
1 changed files with 1 additions and 1 deletions
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2
net/mac802154/wpan.c
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@ -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;