Re: [PATCH] netfilter: xt_HMARK: endian bugs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2012-05-14 at 17:05 +0200, Jan Engelhardt wrote:
> On Monday 2012-05-14 16:40, Pablo Neira Ayuso wrote:
> 
> >> -		if (t->uports.p16.dst < t->uports.p16.src)
> >> +		if (ntohs(t->uports.p16.dst) < ntohs(t->uports.p16.src))
> >
> >Do we really need this to make sparse happy?
> 
> You need it to make *maths* happy.
> 
> Consider
> 
> 	384 < 65407
> 
> but
> 
> 	    ntohs(384) > ntohs(65407)
> 	<=> 32769 > 32767
> --

Doesnt matter at all in this context.

Take a look at 

void __skb_get_rxhash(struct sk_buff *skb)

if ((__force u16)keys.port16[1] < (__force u16)keys.port16[0])
	swap(...)




--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Netfitler Users]     [LARTC]     [Bugtraq]     [Yosemite Forum]

  Powered by Linux