lkml.org 
[lkml]   [2017]   [Oct]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed

Hello,

On Thu, 26 Oct 2017, Ye Yin wrote:

> When run ipvs in two different network namespace at the same host, and one
> ipvs transport network traffic to the other network namespace ipvs.
> 'ipvs_property' flag will make the second ipvs take no effect. So we should
> clear 'ipvs_property' when SKB network namespace changed.
>
> Signed-off-by: Ye Yin <hustcat@gmail.com>
> Signed-off-by: Wei Zhou <chouryzhou@gmail.com>

Patch looks good to me. ipvs_property was added long ago
but skb_scrub_packet() is more recent (3.11), so:

Fixes: 621e84d6f373 ("dev: introduce skb_scrub_packet()")
Signed-off-by: Julian Anastasov <ja@ssi.bg>

I guess, DaveM can apply it directly as a bugfix
to the net tree.

> ---
> include/linux/skbuff.h | 7 +++++++
> net/core/skbuff.c | 1 +
> 2 files changed, 8 insertions(+)
>
> diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
> index 72299ef..d448a48 100644
> --- a/include/linux/skbuff.h
> +++ b/include/linux/skbuff.h
> @@ -3770,6 +3770,13 @@ static inline void nf_reset_trace(struct sk_buff *skb)
> #endif
> }
>
> +static inline void ipvs_reset(struct sk_buff *skb)
> +{
> +#if IS_ENABLED(CONFIG_IP_VS)
> + skb->ipvs_property = 0;
> +#endif
> +}
> +
> /* Note: This doesn't put any conntrack and bridge info in dst. */
> static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src,
> bool copy)
> diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> index 2465607..e140ba4 100644
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -4864,6 +4864,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
> if (!xnet)
> return;
>
> + ipvs_reset(skb);
> skb_orphan(skb);
> skb->mark = 0;
> }
> --
> 1.7.12.4

Regards

--
Julian Anastasov <ja@ssi.bg>

\
 
 \ /
  Last update: 2017-10-28 20:22    [W:0.049 / U:7.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site