Re: [PATCH v3] net: ip, diag -- Add diag interface for raw sockets

From: Cyrill Gorcunov
Date: Fri Sep 16 2016 - 15:00:17 EST


On Fri, Sep 16, 2016 at 10:06:23AM +0300, Cyrill Gorcunov wrote:
> On Thu, Sep 15, 2016 at 05:45:02PM -0600, David Ahern wrote:
> > >
> > > Try to be selective in the -K , do not kill tcp sockets ?
> >
> > I am running
> > ss -aKw 'dev == red'
> >
> > to kill raw sockets bound to device named 'red'.
>
> Thanks David, Eric! I'll play with this option today and report the results.

I created veth pair and bound raw socket into it.

[root@pcs7 iproute2]# misc/ss -A raw
State Recv-Q Send-Q Local Address:Port Peer Address:Port
ESTAB 0 0 127.0.0.1:ipproto-255 127.0.0.10:ipproto-9090
UNCONN 0 0 127.0.0.10:ipproto-255 *:*
UNCONN 0 0 :::ipv6-icmp :::*
UNCONN 0 0 :::ipv6-icmp :::*
ESTAB 0 0 ::1:ipproto-255 ::1:ipproto-9091
UNCONN 0 0 ::1%vm1:ipproto-255 :::*
[root@pcs7 iproute2]#

[root@pcs7 iproute2]# misc/ss -aKw 'dev == vm1'
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 0 ::1%vm1:ipproto-255 :::*

[root@pcs7 iproute2]# misc/ss -A raw
State Recv-Q Send-Q Local Address:Port Peer Address:Port
ESTAB 0 0 127.0.0.1:ipproto-255 127.0.0.10:ipproto-9090
UNCONN 0 0 127.0.0.10:ipproto-255 *:*
UNCONN 0 0 :::ipv6-icmp :::*
UNCONN 0 0 :::ipv6-icmp :::*
ESTAB 0 0 ::1:ipproto-255 ::1:ipproto-9091

so it get zapped out. Is there some other way to test it?