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From: Paolo Abeni <pabeni@redhat.com>
To: Alex Henrie <alexhenrie24@gmail.com>,
	netdev@vger.kernel.org,  jbohac@suse.cz,
	benoit.boissinot@ens-lyon.org, davem@davemloft.net,
	 hideaki.yoshifuji@miraclelinux.com, dsahern@kernel.org
Subject: Re: [PATCH v2 2/5] net: ipv6/addrconf: clamp preferred_lft to the maximum allowed
Date: Thu, 31 Aug 2023 10:25:47 +0200	[thread overview]
Message-ID: <60d9d5f57fdb55a27748996d807712c680c4e7f9.camel@redhat.com> (raw)
In-Reply-To: <20230829054623.104293-3-alexhenrie24@gmail.com>

On Mon, 2023-08-28 at 23:44 -0600, Alex Henrie wrote:
> Without this patch, there is nothing to stop the preferred lifetime of a
> temporary address from being greater than its valid lifetime. If that
> was the case, the valid lifetime was effectively ignored.

AFAICS this change makes the ipv6 implementation more in compliance
with the RFC, but on the flip side it will also break existing users
(if any) which set preferred > valid as a way to get an unlimited
validity period.

I'm quite unsure if the above is really the best option, but I think it
should not threaded as a fix.

My suggestion would be to re-send the uncontroversial patch 1/5 as a
stand-alone fix, and the following patches as a series targeting net-
next (no fixes tag there).

Cheers,

Paolo


  reply	other threads:[~2023-08-31  8:25 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-21  1:11 [PATCH] ipv6/addrconf: clamp preferred_lft to the minimum instead of erroring Alex Henrie
2023-08-22  9:54 ` Paolo Abeni
2023-08-23  3:41   ` Alex Henrie
2023-08-23  3:45     ` David Ahern
2023-08-23  8:36     ` Jiri Bohac
2023-08-23 11:00     ` Paolo Abeni
2023-08-29  5:44 ` [PATCH v2 0/5] net: ipv6/addrconf: ensure that temporary addresses' preferred lifetimes are in the valid range Alex Henrie
2023-08-29  5:44   ` [PATCH v2 1/5] net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr Alex Henrie
2023-09-01  4:41     ` [PATCH v3] " Alex Henrie
2023-09-01 13:53       ` David Ahern
2023-09-04  6:21       ` patchwork-bot+netdevbpf
2023-08-29  5:44   ` [PATCH v2 2/5] net: ipv6/addrconf: clamp preferred_lft to the maximum allowed Alex Henrie
2023-08-31  8:25     ` Paolo Abeni [this message]
2023-08-29  5:44   ` [PATCH v2 3/5] net: ipv6/addrconf: clamp preferred_lft to the minimum required Alex Henrie
2023-08-31  1:28     ` Jakub Kicinski
2023-08-31  5:40       ` Alex Henrie
2023-08-29  5:44   ` [PATCH v2 4/5] Documentation: networking: explain what happens if temp_valid_lft is too small Alex Henrie
2023-08-29  5:44   ` [PATCH v2 5/5] Documentation: networking: explain what happens if temp_prefered_lft is too small or too large Alex Henrie
2023-08-31  8:33     ` Paolo Abeni
2023-10-24 19:40   ` [PATCH resend 1/4] net: ipv6/addrconf: clamp preferred_lft to the maximum allowed Alex Henrie
2023-10-24 19:40     ` [PATCH resend 2/4] net: ipv6/addrconf: clamp preferred_lft to the minimum required Alex Henrie
2023-10-24 19:40     ` [PATCH resend 3/4] Documentation: networking: explain what happens if temp_valid_lft is too small Alex Henrie
2023-10-24 19:40     ` [PATCH resend 4/4] Documentation: networking: explain what happens if temp_prefered_lft is too small or too large Alex Henrie
2023-10-24 19:48     ` [PATCH resend 1/4] net: ipv6/addrconf: clamp preferred_lft to the maximum allowed Jakub Kicinski

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