Patchwork vxlan: allow a user to set TTL value

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Submitter Vincent Bernat
Date Oct. 30, 2012, 8:27 p.m.
Message ID <1351628836-23094-1-git-send-email-bernat@luffy.cx>
Download mbox | patch
Permalink /patch/195622/
State Accepted
Delegated to: David Miller
Headers show

Comments

Vincent Bernat - Oct. 30, 2012, 8:27 p.m.
"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@luffy.cx>
---
 drivers/net/vxlan.c |    3 +++
 1 file changed, 3 insertions(+)
stephen hemminger - Oct. 30, 2012, 8:53 p.m.
On Tue, 30 Oct 2012 21:27:16 +0100
Vincent Bernat <bernat@luffy.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@luffy.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;
>  

Acked-by: Stephen Hemminger <shemminger@vyatta.com>
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stephen hemminger - Oct. 30, 2012, 8:54 p.m.
On Tue, 30 Oct 2012 21:27:16 +0100
Vincent Bernat <bernat@luffy.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@luffy.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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David Miller - Nov. 3, 2012, 7:25 p.m.
From: Vincent Bernat <bernat@luffy.cx>
Date: Tue, 30 Oct 2012 21:27:16 +0100

> "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@luffy.cx>

Applied net-next.
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Patch

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;