nf_hook_entry_hookfn
verdict = nf_hook_entry_hookfn(&e->hooks[i], skb, &state);
verdict = nf_hook_entry_hookfn(&e->hooks[s], skb, state);
verdict = nf_hook_entry_hookfn(hook, skb, state);
verdict = nf_hook_entry_hookfn(hook_entry, skb, &entry->state);