lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 15 Apr 2014 13:17:50 -0700
From:	Cong Wang <>
To:	Jamal Hadi Salim <>
Cc:	Stephen Hemminger <>,
	Linux Kernel Network Developers <>,
	David Miller <>
Subject: Re: [Patch iproute2] u32: add terminal parameter

On Tue, Apr 15, 2014 at 6:00 AM, Jamal Hadi Salim <> wrote:
> On 04/14/14 21:57, Cong Wang wrote:
>> So essentially why u32 filters can't just do matching without bothering
> u32 is a special animal. You can actually have intermediate nodes
> which are _not_ terminal. i.e you can build a tree of hashes which
> interconnect other hashes eventually leading to terminal nodes.

I knew, I thought at least classid is an alternative for action, that is,
one doing classify and one doing some other action.

>> classid especially when they are attached to an ingress qdisc? I still
>> fail to see a reason why I have to care about classid here.
> It is more of a historical artifact with "benefits".
> Historical in that egress qdiscs with classes existed before ingress;
> so it makes sense to keep the syntax people are already familiar with.
> Benefits because infact with the right approach the flowid even at
> ingress can be used as input(look at the route classifier for example
> and association with route accounting of the source).

I see. The next question would be what is a reasonable classid
value for a classless qdisc? Or can we set it to some value to express
"we don't care"?

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists