netdev - Re: [PATCH v2 net-next] net: ipv6: Add a sysctl to make optimistic addresses useful candidates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 29 Oct 2014 15:34:38 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Erik Kline <ek@...gle.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Ben Hutchings <ben@...adent.org.uk>,
	Lorenzo Colitti <lorenzo@...gle.com>
Subject: Re: [PATCH v2 net-next] net: ipv6: Add a sysctl to make optimistic
 addresses useful candidates

Hi Erik,

On Mi, 2014-10-29 at 18:34 +0900, Erik Kline wrote:
> Given that we spoke about this reduction in the number of netlink messages
> earlier, do you still think it's an issue?

No, it would be nice to have but as this is just a minor detail and
complexity would be too high I am fine with your current solution.

> The end result here is that for listeners on netlink sockets on systems
> that (a) have optimistic dad built-in, (b) have optimistic dad enabled, and
> (c) have use_optimistic set: they'll 2 notifications (with different flags)
> for automatically added addresses on these interfaces.

Ack, I see.

> (Personally, given that we appear to send an RTM_NEWADDR when the address
> gets deprecated (I think), I think sending one on every flag change of
> interest is in keeping with existing behaviour.)

It does make sense, I have no objections.

Bye,
Hannes


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html