[Swan-dev] logging interface's SO_{SND,RCV}BUF values

[Antony Antony]

On Tue, May 14, 2019 at 10:40:49AM -0400, Andrew Cagney wrote:
> I'd like to log the SO_{SND,RCV}BUF sizes for each interface (as best

is this going to be dynamic? would there be what is set and what is 
current(can we read the current buffer levels?)

> I can tell we've no way to validate that interfaces are correctly
> configured using ike-socket-bufsize et.al.).
> So my question is where should it be added?
> 
> - there's show_ifaces_status(void) called by 'show status' which looks like:
>       "interface %s/%s %s@%d",
>  so I could append the values to the end of the line, or add a second line
>  I don't really like this, 'show status' already suffers from TMI.
> 
> - there's 'show globalstatus' which dumps other stats in the format:
>      key=value
>   but it doesn't seem to list interfaces at all, I guess I'd invent my own keys
> 
> - and there's always the option of adding 'show interfacestatus' ...
>   hopefully not two painful, and as for output I'd probably print key=value


> The middle option seems most straight forward while the last option
> one seems to be the general trend.  However the last option also seems
> to crying for a way for whack to tell pluto to dump a heap of stats as
> a single operation:
>      show trafficstatus shuntstatus interfacestatus statstatus ....
> perhaps that works?
> 
> preference?

third or second seems appeal to me. there would be more changes soon with 
xfrmi or/and removel of KLIPS. keep eth0/eth0 that will be different in 
KLIPS and xfrmi.