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From: Stefano Brivio <sbrivio@redhat.com>
To: Pablo Neira Ayuso <pablo@netfilter.org>, fw@strlen.de
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH] segtree: bail out on concatenations
Date: Fri, 3 Apr 2020 02:54:53 +0200	[thread overview]
Message-ID: <20200403025453.7c5f00ba@elisabeth> (raw)
In-Reply-To: <20200402214941.60097-1-pablo@netfilter.org>

Hi,

On Thu,  2 Apr 2020 23:49:41 +0200
Pablo Neira Ayuso <pablo@netfilter.org> wrote:

> This patch adds a lazy check to validate that the first element is not a
> concatenation. The segtree code does not support for concatenations,
> bail out with EOPNOTSUPP.
> 
>  # nft add element x y { 10.0.0.0/8 . 192.168.1.3-192.168.1.9 . 1024-65535 }
>  Error: Could not process rule: Operation not supported
>  add element x y { 10.0.0.0/8 . 192.168.1.3-192.168.1.9 . 1024-65535 }
>  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> Otherwise, the segtree code barfs with:
> 
>  BUG: invalid range expression type concat
> 
> Reported-by: Florian Westphal <fw@strlen.de>
> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

I know you both reported this to me, sorry, I still have to polish up
the actual fix before posting it. I'm not very familiar with this code
yet, and it's taking ages.

It might be a few more days before I get to it, so I guess this patch
might make sense for the moment being.

-- 
Stefano


  reply	other threads:[~2020-04-03  0:55 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-02 21:49 [PATCH] segtree: bail out on concatenations Pablo Neira Ayuso
2020-04-03  0:54 ` Stefano Brivio [this message]
2020-04-03 10:39   ` Pablo Neira Ayuso
2020-04-03 10:43     ` Stefano Brivio
2020-04-03 12:03 ` Pablo Neira Ayuso
2020-04-03 12:05   ` Pablo Neira Ayuso
2020-04-03 12:27   ` Stefano Brivio
2020-04-03 12:50     ` Pablo Neira Ayuso
2020-04-03 13:33       ` Stefano Brivio
2020-04-03 14:12         ` Stefano Brivio

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