[PATCH v2] libpcapng: fix timestamp wrapping in output files

Thomas Monjalon thomas at monjalon.net
Wed Jun 1 16:38:01 CEST 2022


17/05/2022 17:15, Stephen Hemminger:
> On Tue, 17 May 2022 11:01:15 +0100
> Quentin Armitage <quentin at armitage.org.uk> wrote:
> 
> > In pcap_tsc_to_ns(), delta * NSEC_PER_SEC will overflow approx 8
> > seconds after pcap_init is called when using a TSC with a frequency
> > of 2.5GHz.
> > 
> > To avoid the overflow, update the saved time and TSC value once
> > delta >= tsc_hz.
> > 
> > Fixes: 8d23ce8f5ee ("pcapng: add new library for writing pcapng files")
> > Cc: stable at dpdk.org
> > 
> > Signed-off-by: Quentin Armitage <quentin at armitage.org.uk>
> 
> Thanks for fixing this.
> 
> Acked-by: Stephen Hemminger <stephen at networkplumber.org>

Applied, thanks.




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