Re: skb->timestamp == 0.000000 ?

[Benjamin Poirier <benjamin.poirier@gmail.com>]

On 11/11/19 18:13, Felipe Dias wrote:
> Hi..
> 
> Please let me know if this isnt right list to this kind of question.
> 
> I'm registering a new protocol handler with dev_add_pack. I would like
> to know only the difference between timestamp on skb->tstamp and the
> time of reception by my module.
> 
> So I do:
> ----
> struct timeval time_skb, time_module;
> do_gettimeofday(&time_module):
> skb_get_timestamp(skb, &time_skb);
> ---
> 
> And time_skb.tv_sec and time_skb.tv_usec are equal to 0;
> 
> I'm doing some wrong ?

Timestamps have to be enabled
have a look at:
net_enable_timestamp()

-Ben