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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Michael Chi <chibo.michael@gmail.com>
Cc: netfilter-devel@vger.kernel.org, fw@strlen.de
Subject: Re: does nftables support string match?
Date: Wed, 13 Sep 2017 14:47:45 +0200	[thread overview]
Message-ID: <20170913124745.GA2943@salvia> (raw)
In-Reply-To: <CAMXhvOCwO49YmLAnEthGGifMZbdSgw2+vR6Pdp3o4cW-XaVjAQ@mail.gmail.com>

Cc'ing Florian,

On Wed, Sep 13, 2017 at 08:13:38PM +0800, Michael Chi wrote:
> Hi experts,
> 
> We are using nftables instead of iptables, but after I have search all
> the nftables documents I found, I don't find a corresponding match
> that can match string in packet, like following in iptables:
> iptables -A INPUT -m string --string 'badstring' -j DROP
> 
> Is such function supported by nftables?

I remember he's got a patch to add support for this, still to be
upstreamed.

Moreover, I started on a patchset to add a new application layer
offset that we discussed during NFWS:

https://workshop.netfilter.org/2017/wiki/images/8/8c/Nft-l7.pdf

So we can solve the existing limitation in iptables, since we start
matching after IP header offset.

  reply	other threads:[~2017-09-13 12:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-13 12:13 does nftables support string match? Michael Chi
2017-09-13 12:47 ` Pablo Neira Ayuso [this message]
2017-09-13 12:54   ` Florian Westphal

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