netdev - Re: [PATCH v5] ipvs: adjust the debug info in function set_tcp

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Date:   Tue, 29 Sep 2020 10:15:49 +0800
From:   yue longguang <yuelongguang@...il.com>
To:     Julian Anastasov <ja@....bg>, "longguang.yue" <bigclouds@....com>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Simon Horman <horms@...ge.net.au>
Cc:     Wensong Zhang <wensong@...ux-vs.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:IPVS" <netdev@...r.kernel.org>,
        "open list:IPVS" <lvs-devel@...r.kernel.org>,
        "open list:NETFILTER" <netfilter-devel@...r.kernel.org>,
        "open list:NETFILTER" <coreteam@...filter.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5] ipvs: adjust the debug info in function set_tcp_state

I sincerely apologize for the trouble which takes up much of your
time. If the last patch does not work , would you please fix it?
thanks

On Mon, Sep 28, 2020 at 10:51 AM longguang.yue <bigclouds@....com> wrote:
>
> Outputting client,virtual,dst addresses info when tcp state changes,
> which makes the connection debug more clear
>
> Signed-off-by: longguang.yue <bigclouds@....com>
> ---
>  net/netfilter/ipvs/ip_vs_proto_tcp.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> index dc2e7da2742a..7da51390cea6 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> @@ -539,8 +539,8 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
>         if (new_state != cp->state) {
>                 struct ip_vs_dest *dest = cp->dest;
>
> -               IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] %s:%d->"
> -                             "%s:%d state: %s->%s conn->refcnt:%d\n",
> +               IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] c:%s:%d v:%s:%d "
> +                             "d:%s:%d state: %s->%s conn->refcnt:%d\n",
>                               pd->pp->name,
>                               ((state_off == TCP_DIR_OUTPUT) ?
>                                "output " : "input "),
> @@ -548,10 +548,12 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
>                               th->fin ? 'F' : '.',
>                               th->ack ? 'A' : '.',
>                               th->rst ? 'R' : '.',
> -                             IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
> -                             ntohs(cp->dport),
>                               IP_VS_DBG_ADDR(cp->af, &cp->caddr),
>                               ntohs(cp->cport),
> +                             IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
> +                             ntohs(cp->vport),
> +                             IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
> +                             ntohs(cp->dport),
>                               tcp_state_name(cp->state),
>                               tcp_state_name(new_state),
>                               refcount_read(&cp->refcnt));
> --
> 2.20.1 (Apple Git-117)
>