Subject: Re: [PATCH] bridge: fix forwarding of IPv6

From: Noah Meyerhans <[email-masked]>
Date: Fri, 13 May 2011 14:00:15 -0700

On Fri, May 13, 2011 at 12:53:14PM -0700, Stephen Hemminger wrote:
> The commit 6b1e960fdbd75dcd9bcc3ba5ff8898ff1ad30b6e
>     bridge: Reset IPCB when entering IP stack on NF_FORWARD
> broke forwarding of IPV6 packets in bridge because it would
> call bp_parse_ip_options with an IPV6 packet.
> 
> Reported-by: Noah Meyerhans <[email-masked]>
> Signed-off-by: Stephen Hemminger <[email-masked]>
> 
> ---
> Patch against net-next-2.6 but must be applied to net-2.6
> and stable as well
> 
> --- a/net/bridge/br_netfilter.c	2011-05-13 12:37:30.289646958 -0700
> +++ b/net/bridge/br_netfilter.c	2011-05-13 12:38:07.820333938 -0700
> @@ -737,7 +737,7 @@ static unsigned int br_nf_forward_ip(uns
>  		nf_bridge->mask |= BRNF_PKT_TYPE;
>  	}
>  
> -	if (br_parse_ip_options(skb))
> +	if (pf == PF_INET && br_parse_ip_options(skb))
>  		return NF_DROP;
>  
>  	/* The physdev module checks on this */
> 

I can confirm that this patch fixes the behavior I've been seeing in the
stable-2.6.38.y tree.  Thank you, Stephen!

noah