which context is this code in

["c.j" <c.james.cj@xxxxxxxxx>]

Hi list,

 

I'm having trouble about NF_HOOK() call.

I intent to add a netfilter hook with nf_register_hook.

THe hook point is NF_ARP_IN. But I'm not sure the caller's context.

 

In kernel code, dev.c I found the caller:

 netif_receive_skb -> arp_rcv -> NF_HOOK -> my_hook_cb

 

When my_hook_cb is invoked, what's the context?  And how can I detect it?

Any idea? Thanks in advance.

 

 

Regards~

 

--

c.j