mac802154: account for all header parts during wpan header creationg · 8c84296fd2 - Gogs: Go Git Service GfA electronic

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>

Phoebe Buckheister 11 years ago

parent

c3a6114f31

commit

8c84296fd2

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
net/mac802154/wpan.c
							 
								View File
							
				@@ -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;