netdev - Re: [PATCH iproute2 resend] Fix changing tunnel remote and local address to any

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Message-ID: <20150625084616.226471e2@uryu.home.lan>
Date:	Thu, 25 Jun 2015 08:46:16 -0400
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	Thadeu Lima de Souza Cascardo <cascardo@...hat.com>,
	netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 resend] Fix changing tunnel remote and local
 address to any

On Mon, 08 Jun 2015 10:51:51 +0200
Nicolas Dichtel <nicolas.dichtel@...nd.com> wrote:

> Le 04/06/2015 14:01, Thadeu Lima de Souza Cascardo a écrit :
> > If a tunnel is created with a local address, you can't change it to any.
> >
> >   # ip tunnel add tunl1 mode ipip remote 10.16.42.37 local 10.16.42.214 ttl 64
> >   # ip tunnel show tunl1
> >   tunl1: ip/ip  remote 10.16.42.37  local 10.16.42.214  ttl 64
> >   # ip tunnel change tunl1 local any
> >   # echo $?
> >   0
> >   # ip tunnel show tunl1
> >   tunl1: ip/ip  remote 10.16.42.37  local 10.16.42.214  ttl 64
> >
> > It happens that parse_args zeroes ip_tunnel_parm, and when creating the
> > tunnel, it is OK to leave it as is if the address is any. However, when
> > changing the tunnel, the current parameters will be read from
> > ip_tunnel_parm, and local and remote address won't be zeroes anymore, so
> > it needs to be explicitly set to any.
> >
> > Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...hat.com>
> Acked-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>

Applied.
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