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Date: Thu, 26 Sep 2013 10:13:44 +0200
From: Steffen Klassert <steffen.klassert@...unet.com>
To: Pravin Shelar <pshelar@...ira.com>
Cc: David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net 2/2] ip_tunnel: Add fallback tunnels to the hash lists
On Wed, Sep 25, 2013 at 09:03:11AM -0700, Pravin Shelar wrote:
> On Tue, Sep 24, 2013 at 10:55 PM, Steffen Klassert
> <steffen.klassert@...unet.com> wrote:
> > Currently we can not update the tunnel parameters of
> > the fallback tunnels because we don't find them in the
> > hash lists. Fix this by adding them on initialization.
> >
> > Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
> > ---
> > net/ipv4/ip_tunnel.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
> > index b8ce640..f2348f2 100644
> > --- a/net/ipv4/ip_tunnel.c
> > +++ b/net/ipv4/ip_tunnel.c
> > @@ -853,8 +853,10 @@ int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
> > /* FB netdevice is special: we have one, and only one per netns.
> > * Allowing to move it to another netns is clearly unsafe.
> > */
> > - if (!IS_ERR(itn->fb_tunnel_dev))
> > + if (!IS_ERR(itn->fb_tunnel_dev)) {
> > itn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;
> > + ip_tunnel_add(itn, netdev_priv(itn->fb_tunnel_dev));
> > + }
> > rtnl_unlock();
> >
> fallback tunnel s not required to be in hash table, Its is returned if
> none of hashed tunnels are matched, ref ip_tunnel_lookup().
> Can you post command to reproduce this issue?
>
Something like
ip tunnel change tunl0 mode ipip remote 0.0.0.0 local 0.0.0.0 ttl 0 tos 1
worked until v3.9 and stopped working with v3.10.
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