Retrieve L2 header or MAR from packet

[La Rus <zator@xxxxxxxxx>]

Hello!
I'm try to study netfilter queue API, I'm need retrive a MAC of a has 
been received IP pakeck.

I use:
nft add rule ip filter OUTPUT ip protocol icmp counter queue num 1

...
if (l_nlattr[NFQA_HWADDR])
        {
            struct nfqnl_msg_packet_hw *hw = 
mnl_attr_get_payload(l_nlattr[NFQA_HWADDR]);
            unsigned int hwlen = ntohs(hw->hw_addrlen);
            const unsigned char *addr = hw->hw_addr;
            unsigned int i;

            $DUMPHEX(addr, hwlen);
        }
...
The pierce of code abohe is not executed.
So, is there what I'm need to check additionaly ?




---
С уважением,
Ruslan R. Laishev
OpenVMS bigot, natural born system/network progger, C contractor.
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