netdev - Re: [PATCH net-next] ipmr: ip6mr: Add ability to display non default caches and vifs

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Date:   Mon, 20 Sep 2021 19:49:09 -0400
From:   Stephen Suryaputra <ssuryaextr@...il.com>
To:     David Ahern <dsahern@...il.com>
Cc:     Nikolay Aleksandrov <nikolay@...dia.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] ipmr: ip6mr: Add ability to display non default
 caches and vifs

On Wed, Aug 18, 2021 at 06:04:12PM -0600, David Ahern wrote:
> On 8/18/21 5:12 PM, Nikolay Aleksandrov wrote:
> > I do not. You can already use netlink to dump any table, I don't see any point
> > in making those available via /proc, it's not a precedent. We have a ton of other
> > (almost any) information already exported via netlink without any need for /proc,
> > there really is no argument to add this new support.
> 
> agreed. From a routing perspective /proc files are very limiting. You
> really need to be using netlink and table dumps. iproute2 and kernel
> infra exist to efficiently request the dump of a specific table. What is
> missing beyond that?

On this, I realized now that without /proc the multicast caches can be
displayed using iproute2. But, it doesn't seem to have support to
display vifs. Is there a public domain command line utility that can
display vifs on non default table, i.e. the one that uses the support in
the kernel in commit 772c344dbb23 ("net: ipmr: add getlink support")?

Thanks.