From: Hannes Frederic Sowa <hannes@stressinduktion•org>
To: Jiri Pirko <jiri@resnulli•us>
Cc: netdev@vger•kernel.org, davem@davemloft•net,
kuznet@ms2•inr.ac.ru, jmorris@namei•org, yoshfuji@linux-ipv6•org,
kaber@trash•net, thaller@redhat•com, stephen@networkplumber•org
Subject: Re: [patch net-next] ipv6: allow userspace to create address with IFLA_F_TEMPORARY flag
Date: Thu, 24 Oct 2013 16:02:53 +0200 [thread overview]
Message-ID: <20131024140253.GF15744@order.stressinduktion.org> (raw)
In-Reply-To: <1382622355-6500-1-git-send-email-jiri@resnulli.us>
On Thu, Oct 24, 2013 at 03:45:55PM +0200, Jiri Pirko wrote:
> This is needed in order to implement userspace address configuration,
> namely ip6-privacy (rfc4941) in NetworkManager.
>
> Signed-off-by: Jiri Pirko <jiri@resnulli•us>
> ---
> net/ipv6/addrconf.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
> index cd3fb30..962c7c9 100644
> --- a/net/ipv6/addrconf.c
> +++ b/net/ipv6/addrconf.c
> @@ -3715,7 +3715,8 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
> return -ENODEV;
>
> /* We ignore other flags so far. */
> - ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS);
> + ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS |
> + IFA_F_TEMPORARY);
>
> ifa = ipv6_get_ifaddr(net, pfx, dev, 1);
> if (ifa == NULL) {
Hm, the kernel will pick up IFA_F_TEMPORARY marked addresses and do ipv6 address
regeneration (depending on lifetimes). Is this intended?
Btw. I am very interested in this topic as there is currently work in the IETF
to move away from eui-48 generation of addresses:
https://datatracker.ietf.org/doc/draft-ietf-6man-stable-privacy-addresses/
This needs to be done in userspace as we depend on a secret generated at
system install time.
Greetings,
Hannes
next prev parent reply other threads:[~2013-10-24 14:02 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-24 13:45 [patch net-next] ipv6: allow userspace to create address with IFLA_F_TEMPORARY flag Jiri Pirko
2013-10-24 13:48 ` [patch iproute2] allow to create temporary addresses Jiri Pirko
2013-10-24 14:02 ` Hannes Frederic Sowa [this message]
2013-10-24 16:59 ` [patch net-next] ipv6: allow userspace to create address with IFLA_F_TEMPORARY flag Jiri Pirko
2013-10-25 10:05 ` Vladislav Yasevich
2013-10-25 20:12 ` Hannes Frederic Sowa
2013-10-25 23:05 ` Vladislav Yasevich
2013-10-27 13:29 ` Jiri Pirko
2013-10-27 16:48 ` Hannes Frederic Sowa
2013-10-28 13:56 ` Vladislav Yasevich
2013-10-28 21:17 ` David Miller
2013-10-28 23:16 ` Dan Williams
2013-10-28 23:23 ` Dan Williams
2013-10-29 0:12 ` David Miller
2013-10-28 23:48 ` Hannes Frederic Sowa
2013-10-29 14:31 ` Dan Williams
2013-10-29 14:38 ` Hannes Frederic Sowa
2013-10-29 17:21 ` Dan Williams
2013-10-29 16:58 ` Vlad Yasevich
2013-10-29 17:15 ` Dan Williams
2013-10-29 0:08 ` David Miller
2013-10-29 0:13 ` Hannes Frederic Sowa
2013-10-29 0:46 ` David Miller
2013-10-28 23:31 ` Hannes Frederic Sowa
2013-10-29 0:43 ` David Miller
2013-10-29 9:37 ` David Laight
2013-10-29 12:40 ` Hannes Frederic Sowa
2013-10-29 13:09 ` Eric Dumazet
2013-10-29 13:11 ` Hannes Frederic Sowa
2013-10-29 19:58 ` David Miller
2013-11-01 21:28 ` Hannes Frederic Sowa
2013-11-05 17:02 ` Nicolas Dichtel
2013-11-05 17:12 ` David Laight
2013-11-05 21:11 ` Hannes Frederic Sowa
2013-11-06 9:23 ` David Laight
2013-11-06 12:03 ` Hannes Frederic Sowa
2013-11-05 20:57 ` Hannes Frederic Sowa
2013-11-06 8:11 ` Nicolas Dichtel
2013-11-09 0:54 ` [RFC PATCH net-next 1/2] ipv4: fix wildcard search with inet_confirm_addr() Nicolas Dichtel
2013-11-09 0:54 ` [RFC PATCH net-next 2/2] udp: add sk opt to allow sending pkt with src 0.0.0.0 Nicolas Dichtel
2013-11-09 14:46 ` Julian Anastasov
2013-11-12 8:59 ` Nicolas Dichtel
2013-11-11 5:18 ` David Miller
2013-11-14 13:05 ` Nicolas Dichtel
2013-11-14 19:57 ` David Miller
2013-11-18 9:15 ` Nicolas Dichtel
2013-11-14 14:31 ` Hannes Frederic Sowa
2013-11-14 20:00 ` David Miller
2013-10-29 19:44 ` [patch net-next] ipv6: allow userspace to create address with IFLA_F_TEMPORARY flag David Miller
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