raw: increment correct SNMP counters for ICMP messages
Sending ICMP packets with raw sockets ends up in the SNMP counters logging the type as the first byte of the IPv4 header rather than the ICMP header. This is fixed by adding the IP Header Length to the casting into a icmphdr struct. Signed-off-by: NBen Cartwright-Cox <ben@benjojo.co.uk> Acked-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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