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From: Jamal Hadi Salim <jhs@mojatatu•com>
To: Alexander Duyck <alexander.h.duyck@intel•com>
Cc: shemminger@vyatta•com, netdev@vger•kernel.org,
	jeffrey.t.kirsher@intel•com, Hasan Chowdhury <shemonc@gmail•com>,
	Pablo Neira Ayuso <pablo@netfilter•org>
Subject: Re: [IPROUTE PATCH v2] iproute2: act_ipt fix xtables breakage on older versions.
Date: Tue, 30 Apr 2013 08:59:58 -0400	[thread overview]
Message-ID: <517FC04E.30705@mojatatu.com> (raw)
In-Reply-To: <20130429154644.52016.60284.stgit@ahduyck-cp1.jf.intel.com>


Hi Alex,
Theres still some confusion on my part.

On 13-04-29 11:50 AM, Alexander Duyck wrote:

> The first is that xtables_merge_options only has 3 parameters.  It appears
> this is how this code was originally.

what you are describing above is still not making sense:

  As such for the case where the version
> is less than 6 I am assuming it would be correct to maintain the original
> setup that only had 3 parameters being passed instead of 4.
>

More below, lets just pick one of those:

> @@ -335,8 +338,7 @@ print_ipt(struct action_util *au,FILE * f, struct rtattr *arg)
>   					    m->x6_options,
>   					    &m->option_offset);
>   #else
> -		opts = xtables_merge_options(tcipt_globals.orig_opts,
> -					     tcipt_globals.opts,
> +		opts = xtables_merge_options(tcipt_globals.opts,
>   					     m->extra_opts,
>   					     &m->option_offset);
>   #endif
>


Here's the original equivalent change that you are updating:
-------
-                       tcipt_globals.opts =
-                           xtables_merge_options(
  #if (XTABLES_VERSION_CODE >= 6)
-                                                 tcipt_globals.orig_opts,
+               opts = xtables_options_xfrm(tcipt_globals.orig_opts,
+                                           tcipt_globals.opts,
+                                           m->x6_options,
+                                           &m->option_offset);
+#else
+               opts = xtables_merge_options(tcipt_globals.orig_opts,
+                                            tcipt_globals.opts,
+                                            m->extra_opts,
+                                            &m->option_offset);
  #endif
-                                                 tcipt_globals.opts,
-                                                 m->extra_opts,
-                                                 &m->option_offset);
------------------

I see, originally these parameters for xtables_merge_options():
tcipt_globals.orig_opts  <---- This is what you are trying to kill
tcipt_globals.opts
m->extra_opts
&m->option_offset

Which says there were 4 parameters to begin with....
Unless you are saying we had it wrong the first time. Pablo?

cheers,
jamal

  reply	other threads:[~2013-04-30 13:00 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-29 15:50 [IPROUTE PATCH v2] iproute2: act_ipt fix xtables breakage on older versions Alexander Duyck
2013-04-30 12:59 ` Jamal Hadi Salim [this message]
2013-04-30 16:07   ` Alexander Duyck
2013-05-01 13:47     ` Jamal Hadi Salim
2013-05-01 14:21       ` Jamal Hadi Salim
2013-05-01 17:18         ` Alexander Duyck
2013-05-01 14:22 ` Jamal Hadi Salim

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