netdev - Re: [PATCH iproute2 3/3] ip/ip6tunnel: fix update of tclass and flowlabel

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Message-ID: <20121116081613.75cbb7b0@nehalam.linuxnetplumber.net>
Date:	Fri, 16 Nov 2012 08:16:13 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 3/3] ip/ip6tunnel: fix update of tclass and
 flowlabel

On Wed, 14 Nov 2012 16:29:26 +0100
Nicolas Dichtel <nicolas.dichtel@...nd.com> wrote:

> When tclass or flowlabel field were updated, we only performed an OR with the
> new value. For example, it was not possible to reset tclass:
>   ip -6 tunnel change ip6tnl2 tclass 0
> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> ---
>  ip/ip6tunnel.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/ip/ip6tunnel.c b/ip/ip6tunnel.c
> index 7aaac61..fcc9f33 100644
> --- a/ip/ip6tunnel.c
> +++ b/ip/ip6tunnel.c
> @@ -173,6 +173,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
>  			   matches(*argv, "dsfield") == 0) {
>  			__u8 uval;
>  			NEXT_ARG();
> +			p->flowinfo &= ~IP6_FLOWINFO_TCLASS;
>  			if (strcmp(*argv, "inherit") == 0)
>  				p->flags |= IP6_TNL_F_USE_ORIG_TCLASS;
>  			else {
> @@ -185,6 +186,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
>  			   strcmp(*argv, "fl") == 0) {
>  			__u32 uval;
>  			NEXT_ARG();
> +			p->flowinfo &= ~IP6_FLOWINFO_FLOWLABEL;
>  			if (strcmp(*argv, "inherit") == 0)
>  				p->flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL;
>  			else {

All applied thanks.
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