Re: [PATCH iproute2] iplink: display the value of IFLA_PROMISCUITY

[Stephen Hemminger <stephen@networkplumber.org>]

On Mon, 04 Feb 2013 18:27:51 +0100
Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:

> Le 04/02/2013 18:04, Stephen Hemminger a écrit :
> > On Mon, 28 Jan 2013 06:47:56 -0800
> > Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:
> >
> >> This is usefull to know the 'real' status of an interface (the flag IFF_PROMISC
> >> is exported by the kernel only when the user set it explicitly, for example it
> >> will not be exported when a tcpdump is running).
> >>
> >> Note that I add a space after qlen (instead of before promiscuity) to be
> >> coherent with the rest of the code.
> >>
> >> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
> >> ---
> >>   ip/ipaddress.c | 5 ++++-
> >>   1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > The idea is good, but I can't accept in the current form.
> > The problem with this is that it violates the unwritten assumption that the output
> > of ip command should be the arguments used to setup that interface. There were even
> > some VPN's that depended on that.
> >
> Would it be acceptable to display this information when '-d' (ip -details link) 
> is provided by the user?

Yeah, that seems to be where such things end up.