On Tue, 2015-06-16 at 12:02 -0400, Craig Gallek wrote:
> Use the IPv4/IPv6/TCP/UDP multicast groups of NETLINK_SOCK_DIAG
> to filter and display socket statistics as they are destroyed.
>
> Kernel support patch series: 24029a3603cfa633e8bc2b3fb3e48e76c497831d
>
> Signed-off-by: Craig Gallek <[email protected]>
> ---
> include/linux/inet_diag.h | 3 +-
> include/linux/sock_diag.h | 10 +++++++
> misc/ss.c | 72
> ++++++++++++++++++++++++++++++++++++++++++++++-
> 3 files changed, 83 insertions(+), 2 deletions(-)
I am not sure filter works, and apparently some fields are not properly
reported ? (source port for example looks wrong)
(Note : you probably need to filter in user space, but ss should already
have support for this)
lpaa23:~# ./ss -Eit dst 10.246.7.152
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 1 ::ffff:10.246.7.151:*
::ffff:10.126.178.16:14354
wscale:7,7 rto:221 rtt:20.165/5.91 ato:40 mss:1448 cwnd:10 send
5.7Mbps lastsnd:21 lastrcv:15023 lastack:1 pacing_rate 11.5Mbps unacked:1
rcv_rtt:20 rcv_space:28960
UNCONN 0 1 127.0.0.1:* 127.0.0.1:9551
rto:1000 mss:524 cwnd:10 lastsnd:67817 lastrcv:67817 lastack:67817
unacked:1
UNCONN 0 1 127.0.0.1:* 127.0.0.1:9551
rto:1000 mss:524 cwnd:10 lastsnd:67818 lastrcv:67818 lastack:67818
unacked:1
UNCONN 0 1 127.0.0.1:* 127.0.0.1:9551
rto:1000 mss:524 cwnd:10 lastsnd:68742 lastrcv:68742 lastack:68742
unacked:1
UNCONN 0 0 10.246.7.151:* 10.246.7.152:50227
wscale:7,7 rto:201 rtt:0.203/0.209 mss:1448 cwnd:254 ssthresh:251 send
14494.3Mbps lastsnd:1 lastrcv:71533 pacing_rate 28970.7Mbps retrans:0/5
rcv_space:29200
UNCONN 0 0 10.246.7.151:* 10.246.7.152:12865
wscale:7,7 rto:201 rtt:0.363/0.375 ato:40 mss:1448 cwnd:10
ssthresh:293 send 319.1Mbps lastsnd:1004 lastrcv:1 lastack:1 pacing_rate
636.7Mbps rcv_rtt:126.125 rcv_space:29200
UNCONN 0 1 127.0.0.1:* 127.0.0.1:9551
rto:1000 mss:524 cwnd:10 lastsnd:73036 lastrcv:73036 lastack:73036
unacked:1
^C
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