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From: Ken-ichirou MATSUZAWA <chamaken@gmail.com>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH nf-next 1/3] netfilter: nfnetlink_queue: remove duplicated obsolete commands handling
Date: Tue, 5 Jan 2016 09:24:57 +0900	[thread overview]
Message-ID: <20160105002456.GA27154@gmail.com> (raw)
In-Reply-To: <20151108221454.GA21221@salvia>

Sorry for being late often.

On Sun, Nov 08, 2015 at 11:14:54PM +0100, Pablo Neira Ayuso wrote:
> commit 0360ae412d09bc6f4864c801effcb20bfd84520e
> Author: Florian Westphal <fw@strlen.de>
> Date:   Fri Nov 23 06:22:21 2012 +0000
> 
>     netfilter: kill support for per-af queue backends
> 
> The former behaviour before Florian's patch is that
> NFQNL_CFG_CMD_PF_BIND and NFQNL_CFG_CMD_PF_UNBIND are terminal.
> 
> This code is there not to break backward compatibility, ie. old
> userspace that rely on these commands.
> 
> After this patch, we inspect if there is an existing queue for this,
> which was not happening before.

I tried to follow your advice, would you see again?

> As I said, my concerns go in the direction of possible breakage of old
> code, we shouldn't break backward.

I'm worry about appended patches 3/5 and 5/5 may not follow it.
After these patches applied, userspace can not update instance's
options with invalid command. is it acceptable?

Thanks,


  reply	other threads:[~2016-01-05  0:25 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-01 18:43 [PATCH 1/2 v3] netfilter: nfnetlink_queue: get rid of nfnetlink_queue_ct.c Pablo Neira Ayuso
2015-10-01 18:43 ` [PATCH 2/2 v3] netfilter: rename nfnetlink_queue_core.c to nfnetlink_queue.c Pablo Neira Ayuso
2015-10-05  2:44   ` [PATCHv2 nf-next 0/4] netfilter: nfnetlink_log attach conntrack information Ken-ichirou MATSUZAWA
2015-10-05  2:47     ` [PATCHv2 nf-next 1/4] netfilter: nfnetlink_queue: rename related to nfqueue attaching conntrack info Ken-ichirou MATSUZAWA
2015-10-05  2:48     ` [PATCHv2 nf-next 2/4] netfilter: Kconfig rename QUEUE_CT to GLUE_CT Ken-ichirou MATSUZAWA
2015-10-05  2:49     ` [PATCHv2 nf-next 3/4] netfilter: nf_conntrack_netlink: add const qualifier to nfnl_hook.get_ct Ken-ichirou MATSUZAWA
2015-10-05  2:50     ` [PATCHv2 nf-next 4/4] netfilter: nfnetlink_log: allow to attach conntrack Ken-ichirou MATSUZAWA
2015-10-05 15:23       ` Pablo Neira Ayuso
2015-10-06  2:10         ` [PATCHv2 nf-next 0/1] netfilter: nfnetlink_queue: check NFQA_CFG_F_CONNTRACK config flag Ken-ichirou MATSUZAWA
2015-10-06  2:12           ` [PATCHv2 nf-next 1/1] " Ken-ichirou MATSUZAWA
2015-10-06 10:07             ` Pablo Neira Ayuso
2015-10-07  4:20               ` Ken-ichirou MATSUZAWA
2015-10-07  4:23                 ` [PATCHv3 nf-next] " Ken-ichirou MATSUZAWA
2015-10-07  4:25                 ` [PATCH nf-next] netfilter: nfnetlink_log: autoload nf_conntrack_netlink module " Ken-ichirou MATSUZAWA
2015-10-12 17:13                   ` Pablo Neira Ayuso
2015-10-12 20:10                     ` Pablo Neira Ayuso
2015-10-16 17:05                   ` Pablo Neira Ayuso
2015-11-06  0:46                     ` Ken-ichirou MATSUZAWA
2015-11-06  0:49                       ` [PATCH nf-next 1/3] netfilter: nfnetlink_queue: remove duplicated obsolete commands handling Ken-ichirou MATSUZAWA
2015-11-08 22:14                         ` Pablo Neira Ayuso
2016-01-05  0:24                           ` Ken-ichirou MATSUZAWA [this message]
2016-01-05  0:28                             ` [PATCH nf-next 1/5] netfilter: nfnetlink_queue: validate dependencies to avoid breaking atomicity Ken-ichirou MATSUZAWA
2016-01-05  0:29                             ` [PATCH nf-next 2/5] netfilter: nfnetlink_queue: not handle options after unbind Ken-ichirou MATSUZAWA
2016-01-05  0:31                             ` [PATCH nf-next 3/5] netfilter: nfnetlink_queue: just returns error for unknown command Ken-ichirou MATSUZAWA
2016-01-05  0:32                             ` [PATCH nf-next 4/5] netfilter: nfnetlink_queue: autoload nf_conntrack_netlink module NFQA_CFG_F_CONNTRACK config flag Ken-ichirou MATSUZAWA
2016-01-05  0:34                             ` [PATCH nf-next 5/5] netfilter: nfnetlink_log: just returns error for unknown command Ken-ichirou MATSUZAWA
2016-01-05 11:03                               ` Pablo Neira Ayuso
2015-11-06  0:56                       ` [PATCH nf-next 2/3] netfilter: nfnetlink_queue: validate dependencies to avoid breaking atomicity Ken-ichirou MATSUZAWA
2015-11-06  0:58                       ` [PATCH nf-next 3/3] netfilter: nfnetlink_queue: autoload nf_conntrack_netlink module NFQA_CFG_F_CONNTRACK config flag Ken-ichirou MATSUZAWA
2015-10-07  4:27                 ` [PATCH nf-next] netfilter: nf_conntrack_netlink: fix nf-nat module loaded checking Ken-ichirou MATSUZAWA
2015-10-07  4:30                 ` [PATCH nf-next] netfilter: nf_conntrack_netlink: fix locks around helper module loading Ken-ichirou MATSUZAWA
2015-10-05 15:33     ` [PATCHv2 nf-next 0/4] netfilter: nfnetlink_log attach conntrack information Pablo Neira Ayuso

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