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:   Sun, 9 Aug 2020 11:15:58 -0700
From:   Cong Wang <>
To:     Jamal Hadi Salim <>
Cc:     David Miller <>,
        Linux Kernel Network Developers <>,
        Jiri Pirko <>,
        Ariel Levkovich <>
Subject: Re: [PATCH net-next 1/1] net/sched: Introduce skb hash classifier

On Fri, Aug 7, 2020 at 3:28 PM Jamal Hadi Salim <> wrote:
> From: Jamal Hadi Salim <>
> his classifier, in the same spirit as the tc skb mark classifier,
> provides a generic (fast lookup) approach to filter on the hash value
> and optional mask.
> like skb->mark, skb->hash could be set by multiple entities in the
> datapath including but not limited to hardware offloaded classification
> policies, hardware RSS (which already sets it today), XDP, ebpf programs
> and even by other tc actions like skbedit and IFE.

Looks like a lot of code duplication with cls_fw, is there any way to
reuse the code?

And I wonder if it is time to introduce a filter to match multiple skb
fields, as adding a filter for each skb field clearly does not scale.
Perhaps something like:

$TC filter add dev $DEV1 parent ffff: protocol ip prio 3 handle X skb \
hash Y mark Z flowid 1:12


Powered by blists - more mailing lists