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Date: Wed, 12 Dec 2007 17:00:14 +0100
From: Patrick McHardy <kaber@...sh.net>
To: Michal Schmidt <mschmidt@...hat.com>
CC: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
Marcela Maslanova <mmaslano@...hat.com>
Subject: Re: [PATCH] IPIP: Allow rebinding the tunnel to another interface
Michal Schmidt wrote:
> +static void ipip_tunnel_bind_dev(struct net_device *dev)
> +{
...
> + dev->iflink = tunnel->parms.link;
> +}
> +
> static int
> ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
> {
> @@ -723,6 +757,10 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
> t->parms.iph.ttl = p.iph.ttl;
> t->parms.iph.tos = p.iph.tos;
> t->parms.iph.frag_off = p.iph.frag_off;
> + if (t->parms.link != p.link) {
> + t->parms.link = p.link;
> + ipip_tunnel_bind_dev(dev);
> + }
If you change dev->iflink this should trigger a rtnetlink
notification.
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