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From: Nicolas Dichtel <nicolas.dichtel-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
To: "Eric W. Biederman"
	<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
	David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: khlebnikov-XoJtRXgx1JseBXzfvpsJ4g@public.gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	vvs-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] ipv4: in new netns initialize sysctls in net.ipv4.conf.* with defaults
Date: Thu, 25 Feb 2016 15:20:48 +0100	[thread overview]
Message-ID: <56CF0DC0.7030003@6wind.com> (raw)
In-Reply-To: <87y4a9ix2h.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>

Le 24/02/2016 23:05, Eric W. Biederman a écrit :
[snip]
> In the general case the current behavior is random and not something
> applications can count on, and we would do well to fix it so it is less
> random.  In particular consider the case of an application in a
> non-initial network namespace creating a new network namespace.  It is
> not even possible to predict what values they will get for sysctls
> today.
+1

>  From a backwards compatibility standpoint we are probably better off
> with copying from the current network namespace rather than the initial
> network namespace.  As that more closely resembles the common case
> today.
+1

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WARNING: multiple messages have this Message-ID (diff)
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>,
	David Miller <davem@davemloft.net>
Cc: khlebnikov@yandex-team.ru, netdev@vger.kernel.org,
	containers@lists.linux-foundation.org, vvs@virtuozzo.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ipv4: in new netns initialize sysctls in net.ipv4.conf.* with defaults
Date: Thu, 25 Feb 2016 15:20:48 +0100	[thread overview]
Message-ID: <56CF0DC0.7030003@6wind.com> (raw)
In-Reply-To: <87y4a9ix2h.fsf@x220.int.ebiederm.org>

Le 24/02/2016 23:05, Eric W. Biederman a écrit :
[snip]
> In the general case the current behavior is random and not something
> applications can count on, and we would do well to fix it so it is less
> random.  In particular consider the case of an application in a
> non-initial network namespace creating a new network namespace.  It is
> not even possible to predict what values they will get for sysctls
> today.
+1

>  From a backwards compatibility standpoint we are probably better off
> with copying from the current network namespace rather than the initial
> network namespace.  As that more closely resembles the common case
> today.
+1

  parent reply	other threads:[~2016-02-25 14:20 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-21  7:11 [PATCH] ipv4: in new netns initialize sysctls in net.ipv4.conf.* with defaults Konstantin Khlebnikov
2016-02-21  7:11 ` Konstantin Khlebnikov
2016-02-21  9:25 ` Vasily Averin
2016-02-21  9:25   ` Vasily Averin
     [not found]   ` <56C9827D.3010103-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2016-02-21 16:58     ` Konstantin Khlebnikov
2016-02-21 16:58       ` Konstantin Khlebnikov
2016-02-21 22:06 ` Eric W. Biederman
2016-02-21 22:06 ` Eric W. Biederman
2016-02-23 23:21 ` David Miller
2016-02-23 23:21   ` David Miller
     [not found]   ` <20160223.182121.2101846699151527296.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2016-02-24  5:16     ` Konstantin Khlebnikov
2016-02-24  5:16       ` Konstantin Khlebnikov
     [not found]       ` <CALYGNiNfuDzPr3+qE82CLVBvSTFQvyAyhWv9kzXbBrUO2jYMTQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-24 15:20         ` David Miller
2016-02-24 15:20           ` David Miller
2016-02-24 22:05     ` Eric W. Biederman
2016-02-24 22:05       ` Eric W. Biederman
2016-02-24 22:05       ` Eric W. Biederman
     [not found]       ` <87y4a9ix2h.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2016-02-25 14:20         ` Nicolas Dichtel [this message]
2016-02-25 14:20           ` Nicolas Dichtel
     [not found]           ` <56CF0DC0.7030003-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2016-02-25 16:43             ` David Miller
2016-02-25 16:43               ` David Miller

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