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Re: [PATCH ipvs-next] ipvs: Maintain all DSCP and ECN bits for ipv6 tun

To: agartrell@xxxxxx
Subject: Re: [PATCH ipvs-next] ipvs: Maintain all DSCP and ECN bits for ipv6 tun forwarding
Cc: lvs-devel@xxxxxxxxxxxxxxx
From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Thu, 17 Jul 2014 12:55:25 +0900
On Wed, Jul 16, 2014 at 03:57:34PM -0700, agartrell@xxxxxx wrote:
> From: Alex Gartrell <agartrell@xxxxxx>
> 
> Previously, only the four high bits of the tclass were maintained in the
> ipv6 case.  This matches the behavior of ipv4, though whether or not we
> should reflect ECN bits may be up for debate.
> 
> Signed-off-by: Alex Gartrell <agartrell@xxxxxx>
> Acked-by: Julian Anastasov <ja@xxxxxx>

Thanks, I have queued this up for v3.16 in the ipvs tree.

> ---
>  net/netfilter/ipvs/ip_vs_xmit.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
> index c47444e..28ee592 100644
> --- a/net/netfilter/ipvs/ip_vs_xmit.c
> +++ b/net/netfilter/ipvs/ip_vs_xmit.c
> @@ -967,8 +967,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct 
> ip_vs_conn *cp,
>       iph->nexthdr            =       IPPROTO_IPV6;
>       iph->payload_len        =       old_iph->payload_len;
>       be16_add_cpu(&iph->payload_len, sizeof(*old_iph));
> -     iph->priority           =       old_iph->priority;
>       memset(&iph->flow_lbl, 0, sizeof(iph->flow_lbl));
> +     ipv6_change_dsfield(iph, 0, ipv6_get_dsfield(old_iph));
>       iph->daddr = cp->daddr.in6;
>       iph->saddr = saddr;
>       iph->hop_limit          =       old_iph->hop_limit;
> -- 
> 1.8.1
> 
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