netdev - Re: [RFC iproute2 v2] ip route: get: allow zero-length subnet mask

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Message-ID: <20190219152238.05298fc2@shemminger-XPS-13-9360>
Date:   Tue, 19 Feb 2019 15:22:38 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Luca Boccassi <bluca@...ian.org>
Cc:     netdev@...r.kernel.org,
        Clément Hertling <wxcafe@...afe.net>
Subject: Re: [RFC iproute2 v2] ip route: get: allow zero-length subnet mask

On Thu, 14 Feb 2019 23:29:18 +0000
Luca Boccassi <bluca@...ian.org> wrote:

> A /0 subnet mask is theoretically valid, but ip route get doesn't allow
> it:
> 
> $ ip route get 1.0.0.0/0
> need at least a destination address
> 
> Change the check and remember whether we found an address or not, since
> according to the documentation it's a mandatory parameter.
> 
> $ ip/ip route get 1.0.0.0/0
> 1.0.0.0 via 192.168.1.1 dev eth0 src 192.168.1.91 uid 1000
>     cache
> 
> Reported-by: Clément Hertling <wxcafe@...afe.net>
> Signed-off-by: Luca Boccassi <bluca@...ian.org>
> ---

Applied