netdev - Re: [PATCH] vxlan: allow a user to set TTL value

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Message-ID: <20121030135427.367c90cb@nehalam.linuxnetplumber.net>
Date:	Tue, 30 Oct 2012 13:54:27 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Vincent Bernat <bernat@...fy.cx>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] vxlan: allow a user to set TTL value

On Tue, 30 Oct 2012 21:27:16 +0100
Vincent Bernat <bernat@...fy.cx> wrote:

> "ip link add ... type vxlan ... ttl X" allows a user to set the TTL
> used by a VXLAN for encapsulation. The provided value was ignored by
> vxlan module and the default value of 1 was used when encapsulating
> multicast packets.
> 
> Signed-off-by: Vincent Bernat <bernat@...fy.cx>
> ---
>  drivers/net/vxlan.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
> index 607976c..030559d 100644
> --- a/drivers/net/vxlan.c
> +++ b/drivers/net/vxlan.c
> @@ -1107,6 +1107,9 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
>  	if (data[IFLA_VXLAN_TOS])
>  		vxlan->tos  = nla_get_u8(data[IFLA_VXLAN_TOS]);
>  
> +	if (data[IFLA_VXLAN_TTL])
> +		vxlan->ttl = nla_get_u8(data[IFLA_VXLAN_TTL]);
> +
>  	if (!data[IFLA_VXLAN_LEARNING] || nla_get_u8(data[IFLA_VXLAN_LEARNING]))
>  		vxlan->learn = true;
>  

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