[PATCH] libipt_statistic
NICOLAS BOULIANE
nicboul at gmail.com
Mon Jul 2 20:05:08 CEST 2007
On 7/2/07, Patrick McHardy <kaber at trash.net> wrote:
> NICOLAS BOULIANE wrote:
> > On 7/2/07, Patrick McHardy <kaber at trash.net> wrote:
> >
> >> It starts at zero and goes up to n - 1. So for the second
> >> packet you would actually use --packet 1. A bit
> >> counterintuitive, I agree, but too late to change.
> >
> > with --every 4 --packet 2
> > [ count = every - packet ]
> >
> > in the final check:
> > count = 1
> > every = 3
> > packet = 2
> >
> > I don't see what is starting at zero.
>
> The count. --packet n will match the n+1th packet.
>
>
i'm not trying to bother you, but there's surely something I dont understand.
In the kernel we have:
if (info->u.nth.count++ == info->u.nth.every)
info->u.nth.count = 0;
--every 4 --packet 2
count = 1, every = 3, packet = 2
1th packet:
if (1 == 3) { // no match
2th packet:
if (2 == 3) { // no match
3th packet:
if (3 == 3) { // match and set __count = 0__
next time we will match the 4th packet.
Is what I should expect ? or there's something wrong.
thanks,
acidfu
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