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From: Florian Westphal <fw@strlen.de>
To: Oliver Ford <ojford@gmail.com>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH v3 1/1] iptables: Fix crash on malformed iptables-restore
Date: Fri, 19 May 2017 12:04:10 +0200	[thread overview]
Message-ID: <20170519100410.GB28091@breakpoint.cc> (raw)
In-Reply-To: <1495187664-7807-1-git-send-email-ojford@gmail.com>

Oliver Ford <ojford@gmail.com> wrote:
> Filter a beginning '--t'. Because the getopt_long function allows abbreviations,
> any parameter beginning with '--t' will be treated as '--table'.

No, thats not correct:
--t is treated as --table.
--tfoo is an invalid option.
--ttl is ttl.

So this:

> +				|| !strncmp(param_buffer, "--t", 3)) {
>  				xtables_error(PARAMETER_PROBLEM,
> +					"The -t option (seen in line %u) cannot be "
> +					"used in ip6tables-restore.\n", line);

.. rejects rules like

-A INPUT -m ttl --ttl 32

  reply	other threads:[~2017-05-19 10:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-19  9:54 [PATCH v3 1/1] iptables: Fix crash on malformed iptables-restore Oliver Ford
2017-05-19 10:04 ` Florian Westphal [this message]
2017-05-19 10:12   ` Oliver Ford
2017-05-19 10:38     ` Florian Westphal
2017-05-19 10:41       ` Oliver Ford
2017-05-19 11:24       ` Oliver Ford
2017-05-19 11:36         ` Florian Westphal
2017-05-19 12:03           ` Oliver Ford

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