[ovs-dev] [PATCH v4] Replace most uses of and references to "ifconfig" by "ip".

[Ben Pfaff]

On Tue, May 30, 2017 at 04:46:46PM -0700, Greg Rose wrote:
> On Tue, 2017-05-30 at 10:39 -0700, Ben Pfaff wrote:
> > On Tue, May 30, 2017 at 10:30:59AM -0700, Greg Rose wrote:
> > > On Tue, 2017-05-30 at 10:29 -0700, Ben Pfaff wrote:
> > > > On Tue, May 30, 2017 at 10:04:55AM -0700, Greg Rose wrote:
> > > > > On Tue, 2017-05-30 at 09:31 -0700, Ben Pfaff wrote:
> > > > > > It's becoming more common that OSes include "ip" but not "ifconfig", so
> > > > > > it's best to avoid using the latter.  This commit removes most references
> > > > > > to "ifconfig" and replaces them by "ip".  It also adds a build-time check
> > > > > > to make it harder to introduce new uses of "ifconfig".
> > > > > > 
> > > > > > There are important differences between "ifconfig" and "ip":
> > > > > > 
> > > > > > - An "ifconfig" command that sets an IP address also brings the interface
> > > > > >   up, but a similar "ip addr add" command does not, so it is often necessary
> > > > > >   (or at least precautionary) to add an "ip link set <dev> up" command.
> > > > > > 
> > > > > > - "ifconfig" can infer a netmask from an IP adddress, but "ip" always
> > > > > >   assumes /32 if none is given.
> > > > > > 
> > > > > > - "ifconfig" with address 0.0.0.0 removes any configured IP address, but
> > > > > >   "ip addr add" does not, so "ifconfig <dev> 0.0.0.0" must be replaced by
> > > > > >   "ip addr del" or "ip addr flush".
> > > > > > 
> > > > > > Signed-off-by: Ben Pfaff <blp at ovn.org>
> > > > > 
> > > > > A couple of typos below that you can fix on push but otherwise looks
> > > > > good.
> > > > > 
> > > > > Thanks!
> > > > 
> > > > Are you decently set up to test this (the python bits)?  I don't have a
> > > > good setup at the moment.
> > > 
> > > Sure. I just started another test that will take a bit to complete but I
> > > can get to it today.
> > 
> > Thanks a lot.
> 
> Passes 'make check'.
> 
> 2355 tests were successful.
> 1 test was skipped.
> 
> The one test skipped was this one:
> 
> 129. daemon --service (daemon.at:167): skipped (daemon.at:169)
> 1 test was skipped.
> 
> I'll look into it.
> 
> But for Python 2 and Python 3 everything was fine.
> 
> Passed a Travis build too.
> 
> https://travis-ci.org/gvrose8192/ovs-experimental/builds/237694694

I was able to run "make check" as well; that's easy.  The hard part for
me are "ovs-vlan-test" and "ovs-test" in the utilities directory, which
aren't exercised by the testsuite.

Ansis, these utilities haven't seen any updates for years.  Do you know
whether they are still useful and relevant?

Thanks,

Ben.