On Mon, Jun 13, 2016 at 3:08 PM, Jamal Hadi Salim <j...@mojatatu.com> wrote:
> From: Jamal Hadi Salim <j...@mojatatu.com>
>
> This refers to commands to direct action access as follows:
>
> sudo tc actions add action drop index 12
> sudo tc actions add action pipe index 10
>
> And then dumping them like so:
> sudo tc actions ls action gact
>
> iproute2 worked because it depended on absence of TCA_ACT_TAB TLV
> as end of message.
> This fix has been tested with iproute2 and is backward compatible.
>
> Signed-off-by: Jamal Hadi Salim <j...@mojatatu.com>
> ---
>  net/sched/act_api.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/sched/act_api.c b/net/sched/act_api.c
> index 336774a..c7a0b0d 100644
> --- a/net/sched/act_api.c
> +++ b/net/sched/act_api.c
> @@ -1118,7 +1118,7 @@ tc_dump_action(struct sk_buff *skb, struct 
> netlink_callback *cb)
>                 nla_nest_end(skb, nest);
>                 ret = skb->len;
>         } else
> -               nla_nest_cancel(skb, nest);
> +               nlmsg_trim(skb, b);

So trim the whole tcamsg instead of just the nest attribute,
looks reasonable:

Acked-by: Cong Wang <xiyou.wangc...@gmail.com>

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