Hello,
On Sun, 15 Oct 2017, KUWAZAWA Takuya wrote:
> Information about ipvs in different network namespace can be seen via procfs.
>
> How to reproduce:
>
> # ip netns add ns01
> # ip netns add ns02
> # ip netns exec ns01 ip a add dev lo 127.0.0.1/8
> # ip netns exec ns02 ip a add dev lo 127.0.0.1/8
> # ip netns exec ns01 ipvsadm -A -t 10.1.1.1:80
> # ip netns exec ns02 ipvsadm -A -t 10.1.1.2:80
>
> The ipvsadm displays information about its own network namespace only.
>
> # ip netns exec ns01 ipvsadm -Ln
> IP Virtual Server version 1.2.1 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP 10.1.1.1:80 wlc
>
> # ip netns exec ns02 ipvsadm -Ln
> IP Virtual Server version 1.2.1 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP 10.1.1.2:80 wlc
>
> But I can see information about other network namespace via procfs.
>
> # ip netns exec ns01 cat /proc/net/ip_vs
> IP Virtual Server version 1.2.1 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP 0A010101:0050 wlc
> TCP 0A010102:0050 wlc
>
> # ip netns exec ns02 cat /proc/net/ip_vs
> IP Virtual Server version 1.2.1 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP 0A010102:0050 wlc
>
> Signed-off-by: KUWAZAWA Takuya <albatross0@xxxxxxxxx>
Looks good to me
Acked-by: Julian Anastasov <ja@xxxxxx>
Simon, please apply to ipvs tree.
> ---
> net/netfilter/ipvs/ip_vs_ctl.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
> index 4f940d7..b3245f9 100644
> --- a/net/netfilter/ipvs/ip_vs_ctl.c
> +++ b/net/netfilter/ipvs/ip_vs_ctl.c
> @@ -2034,12 +2034,16 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
> seq_puts(seq,
> " -> RemoteAddress:Port Forward Weight ActiveConn InActConn\n");
> } else {
> + struct net *net = seq_file_net(seq);
> + struct netns_ipvs *ipvs = net_ipvs(net);
> const struct ip_vs_service *svc = v;
> const struct ip_vs_iter *iter = seq->private;
> const struct ip_vs_dest *dest;
> struct ip_vs_scheduler *sched = rcu_dereference(svc->scheduler);
> char *sched_name = sched ? sched->name : "none";
>
> + if (svc->ipvs != ipvs)
> + return 0;
> if (iter->table == ip_vs_svc_table) {
> #ifdef CONFIG_IP_VS_IPV6
> if (svc->af == AF_INET6)
> --
> 1.8.3.1
Regards
--
Julian Anastasov <ja@xxxxxx>
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